Quantumteleportation , or entanglement assisted teleportation , is a process by which a qubit the basic ... China2010 Protocol Image Quantumteleportation diagram.PNG 300px thumb right Diagram for quantumteleportation of a photon The prerequisites for quantumteleportation are a qubit that is to be teleported ... for teleportation for example, quantum state math phi rangle math of a photon results. Experimental ... 2010 05 22 ref The longest distance yet claimed to be achieved for quantumteleportation is 16 ... China2010 cite web url http www.physorg.com news193551675.html title Quantumteleportation achieved ... teleportation . Option 1 is highly undesirable because quantum states are fragile and any perturbation ... of the qubit c . The result Image Quantumteleportation circuit.svg 300px thumb right Quantum circuit representation of quantumteleportation Suppose Alice has a qubit that she wants to teleport to Bob ... C beta 1 rangle C. math Our quantumteleportation scheme requires Alice and Bob to share a maximally ... scheme General description A general teleportation scheme can be described as follows. Three quantum ... uncertainly principle Quantum energy teleportation References No footnotes date February 2010 ... out the entanglement protocol. Lev Vaidman L. Vaidman , Teleportation of Quantum States , Phys. Rev ... R Cleve , Teleportation as a Quantum Computation , Physica D 120 43 47 1998 Asher Peres A. Peres ... arxiv.org abs quant ph 0304158 this document online G. Rigolin, QuantumTeleportation of an Arbitrary .... Weinfurter, Anton Zeilinger A. Zeilinger , Experimental QuantumTeleportation, Nature journal Nature ... of Qubits at Telecommunication Wavelengths, Nature, 421 , 509 2003 R. Ursin et al., QuantumTeleportation ..., D. N. Matsukevich, P. Maunz, D. Hayes, L. M. Duan, and C. Monroe, QuantumTeleportation between Distant ... QuantumTeleportation with Atoms, Nature 429 , 734 737 2004 M. D. Barrett, J. Chiaverini .... J. Wineland, Deterministic QuantumTeleportation of Atomic Qubits, Nature 429 , 737 2004 . External ... more details
Quantum energy teleportation is a hypothesis put forward first by Japanese physicist Masahiro Hotta of Tohoku University which proposes that it may be possible to teleport energy by exploiting quantum energy fluctuations of an entangled vacuum state of a quantum field. ref cite news first Masahiro last Hotta title A PROTOCOL FOR QUANTUM ENERGY DISTRIBUTION work Phys. Lett. A 372 5671 2008 ref ref cite news first Masahiro last Hotta title QUANTUM MEASUREMENT INFORMATION AS A KEY TO ENERGY EXTRACTION ... QUANTUM ENERGY TELEPORTATION IN SPIN CHAIN SYSTEMS work J. Phys. Soc. Jap. 78 034001 2009 ref ref cite news first Masahiro last Hotta title QUANTUM ENERGY TELEPORTATION WITH TRAPPED IONS work Phys. Rev. A 80 042323 2009 ref ref cite news first Masahiro last Hotta title QUANTUM ENERGY TELEPORTATION ... ENERGY ENTANGLEMENT RELATION FOR QUANTUM ENERGY TELEPORTATION work Phys. Lett. A 374 3416 2010 ref ref cite news first Yasusada, et al last Nambu title QUANTUM ENERGY TELEPORTATION WITH A LINEAR HARMONIC ... last Kazan title Is QuantumTeleportation of Energy Possible? date December 8, 2010 url http www.dailygalaxy.com my weblog 2010 12 will quantumteleportation of energy be possible.html work The Daily ... Jay last Cornell date February 7, 2010 title Quantum Energy Teleportation Breakthrough? Don t Beam Me Up Yet work Hplusmagazine.com url http www.hplusmagazine.com editors blog quantum energy teleportation breakthrough don E2 80 99t beam me yet ref The idea is a continuation of quantumteleportation ... ref Protocols of the quantumteleportation transfer quantum information, but cannot teleport energy itself. Description Quantum energy teleportation is a quantum protocol which transfers locally ... last Masahiro first Hotta title Quantum Energy Teleportation An Introductory Review url http www.tuhep.phys.tohoku.ac.jp ... Teleportation Category Theoretical physics Category Quantum information science ... 105305 2010 ref ref cite news first Masahiro last Hotta title CONTROLLED HAWKING PROCESS BY QUANTUM ... more details
Diagram for quantumteleportation of a photon. Modified form of one of the basic Feynman type diagrams in the paper by Bennett et. al., Teleporting an Unknown Quantum State via Dual Classical and Einstein Podolsky Rosen Channels , Phys. Rev. Lett. 70 , 1895 1899 1993 http www.research.ibm.com quantuminfo teleportation teleportation.html online . Changes include re orientation of axes time is now left to right , addition of time arrow, additions to annotation, text font. Generic Feynman type nature of diagram and substantive transformations correspond to fair use. GFDL self ... more details
Unreferenced date December 2006 In quantum information theory , the no teleportation theorem states that quantum information cannot be measured with complete accuracy. Formulation The term quantum information refers to information stored in the mixed state state of a quantum system. Two quantum states sub 1 sub and sub 2 sub are identical if the measurement results of any physical observable have the same expectation value for sub 1 sub and sub 2 sub . Thus Measurement in quantum mechanics measurement can be viewed as an quantum channel information channel with quantum input and classical output, that is, performing measurement on a quantum system transforms quantum information into classical information. On the other hand, preparing a quantum state takes classical information to quantum information. In general, a quantum state is described by a density matrix . Suppose one has a quantum .... The no teleportation theorem states that the result will be different from , irrespective of how the preparation procedure is related to measurement outcome. A quantum state cannot be determined via a single measurement. In other words, if a quantum channel is measurement followed by preparation, it cannot be the identity channel. Once converted to classical information, quantum information ... information to quantum information then back to classical information. For classical bits, this can be done by encoding them in orthogonal quantum states, which can always be distinguished. See also Among other no go theorems in quantum information are No communication theorem . Entangled states cannot ... theorem . Quantum states cannot be copied. No broadcast theorem . A generalization of no cloning theorem in the case of pure states . With the aid of Quantum entanglement shared entanglement , quantum states can be teleported, see Quantumteleportation DEFAULTSORT No Teleportation Theorem Category Quantum information theory ... more details
are transported back through time by means of a quantumteleportation. Transit 1964 sf novel Edmund ...dablink This article is about fictitious content for the subject article, see TeleportationTeleportation ... the Tarnhelm . a magic helmet which conferrs, among other things, the power of teleportation ... around the idea of teleportation. The Engines of Dawn Teleportation utilizes a sort of portal that uses ... fiction Later authors of science fiction used the term and concept of teleportation more extensively ... , June 1957 and Algis Budrys Rogue Moon Gold Medal Books, 1960 used teleportation. Gridlinked ... teleportation between any two points in the runcible grid. They can be used to transport objects ... book series by J. K. Rowling , there are several methods of teleportation, all of them magical. Apparation ... s Guide to the Galaxy series teleportation has been described as not quite as fun as a good solid kick ... place and put back together somewhere else. In the Hitchhiker s Guide to the Galaxy, teleportation ... The Jaunt , teleportation is a routine form of transportation in the future, but sentient organisms ... of teleportation in science fiction was printed in 1877 Edward Page Mitchell s story The Man Without ... novel variety of teleportation can be seen in Harry Harrison s short story collection One Step from Earth , nine stories all revolving around a variety of teleportation Harrison calls matter ... Project uses quantum singularities artificial black hole s to transpose two masses. The Stars My ... jaunt spelled Jaunte in the book as a term for personal teleportation. Stranger in a Strange ... differently by the cold blooded aliens who provided the teleportation technology, and their warm ... worked because they contained an alloy known as Aquatar. Teleportation was a known technology to the Federation ... Rogers in the 25th Century TV series A short distance teleportation device used instead of elevator ... teleportation device and time travel time machine was featured in the 1950s TV space opera Captain ... more details
orphan date September 2008 Quantum networks descend from the study of Quantum cryptography . The idea of a quantum network emerged after successful experiments on quantumteleportation . When two companies one from Switzerland, idQuantique , and another from the USA, MagiQTech released practical communication devices based upon the rules of quantum mechanics , the need for a secure network capable of utilizing quantum principles was realized. These networks are now known as quantum communication networks. In these networks, data is communicated as quantum states through the technique of Quantum entanglement entanglement via an optical fiber link. History of Development border 1 cellpadding 5 Date Developments Notes Oct 23rd 2003 DARPA Quantum Network becomes fully operational The world s first quantum encrypted functional network becomes fully operational in BBN Labs June 2004 DARPA Quantum Network is linked between campuses Dark fibre routed beneath the streets of Cambridge, Massachusetts used to link Harvard University with the BBN Technologies campus, allowing non stop quantum cryptography 24 7 Dec 2004 Quantum Network consists of 6 nodes ... June 2005 DARPA Quantum Network expands to incorporate first free space link Allowing quantum keys and communications to be transmitted securely through the air See also Quantum Mechanics br Quantum Computer br Quantum bus br Chemical computer br DNA computer br Molecular computer br Quantum Internet br Sources 1 http itvibe.com news 2583 br 2 http www.vnunet.com vnunet news 2125164 first quantum computer network goes online br 3 http www.bbn.com news and events press releases 2005 press releases 05 06 01 br 4 http adsabs.harvard.edu abs 2004quant.ph.12029E Category Quantum information science telecomm stub de Quantennetzwerk hu Kvantumh l zat ja ru ... more details
Quantum cloning is the process that takes an arbitrary, unknown quantum state and makes an exact copy without altering the original state in any way. In Dirac notation , the process of quantum cloning is described by math U psi rangle A e rangle B psi rangle A psi rangle B math , where math U math is the actual cloning operation, math psi rangle A math is the state to be cloned, and math e rangle B math is the initial state of the copy. Quantum cloning is forbidden by the laws of quantum mechanics as shown by the no cloning theorem , which proves that there is no math U math that can perform the cloning operation for any arbitrary state math psi rangle A math . Though perfect quantum cloning ... of quantum states fidelity with the state being cloned. The quantum cloning operation is the best way to make copies of quantum information therefore cloning is an important task in quantum information processing, especially in the context of quantum cryptography. Researchers are seeking ways to build quantum cloning machines, which work at the so called quantum limit. The first cloning machine relied on stimulated emission to copy quantum information encoded into single photons. Teleportation, nuclear magnetic resonance, quantum amplification and superior phase conjugation have been some other methods utilized to realize a quantum cloning machine. References V. Buzek and M. Hillery, http xstructure.inr.ac.ru x bin theme3.py?level 1&index1 373537 Quantum cloning , Physics World 14 11 2001 ... abs quant ph 0205149 Experimental Quantum Cloning of Single Photons , Science 296 5568 2002 ... via Partial Teleportation , Phys. Rev. Lett 95 030502 2005 Cummins Holly K., Jones Claire, Furze ... quant ph 011198 Approximate Quantum Cloning with Nuclear Magnetic Resonance , Phys. Rev. Lett 88 ... Conjugate Inputs , Phys. Rev. Lett 98 170503 2007 See also Quantum no deleting theorem Category Quantum mechanics Category Quantum information science quantum stub ... more details
of quantum entanglement , quantumteleportation , and recently, in 1995 quantum logic gate s. The latter are of much interest in quantum information theory , a subject which partly emerged from quantum optics, partly from theoretical computer science . Today s fields of interest among quantum ...No footnotes date April 2009 Quantum optics is a field of research in physics , dealing with the application of quantum mechanics to phenomena involving light and its interactions with matter . History of quantum optics Light is made up of particles called photons and hence inherently is grainy quantized . Quantum optics is the study of the nature and effects of light as quantized photons. The first ... between light and matter following these developments not only formed the basis of quantum optics but were also crucial for the development of quantum mechanics as a whole. However, the subfields of quantum mechanics dealing with matter light interaction were principally regarded as research into matter rather than into light hence one rather spoke of atom physics and quantum electronics ... became an important field, and the quantum mechanics underlying the laser s principles was studied now with more emphasis on the properties of light, and the name quantum optics became customary. As laser ... very fruitful, interest in quantum optics rose. Following the work of Paul Dirac Dirac in quantum field theory , George Sudarshan , Roy J. Glauber , and Leonard Mandel applied quantum theory to the electromagnetic ... of the coherent state as a quantum description of laser light and the realization that some states ... the first source of light which required a quantum description a single atom that emitted ... quantum state of light with certain advantages over any classical state, Squeezed coherent state ... oscillation , even shorter attosecond light pulses, use of quantum optics for quantum information , manipulation ... them a sub field often called atom optics , coherent perfect absorber s, and much more. Research into quantum ... more details
of the no teleportation theorem , which says classical teleportation not to be confused with quantumteleportation entanglement assisted teleportation is impossible. In other words, a quantum ... in the convex set of channels are precisely the pure channels. Teleportation In quantumteleportation .... Consequently, the teleportation process is a quantum channel. The apparatus for the process ... the teleportation. Importantly, the classical information can be sent after the quantum channel ... can be broken, with the aid of quantum entanglement entanglement . The quantumteleportation entanglement assisted teleportation scheme allows one to transmit quantum information using a classical ...In quantum information theory , a quantum channel is a communication channel which can transmit quantum information , as well as classical information. An example of quantum information is the state of a qubit ... formally, quantum channels are completely positive , trace preserving maps between spaces of operators. In other words, a quantum channel is just a quantum operation viewed not merely as the reduced dynamics of a system but as a pipeline intended to carry quantum information. Memoryless quantum channel We will assume for the moment that all state spaces of the systems considered, classical or quantum ... input and not any previous ones. Schr dinger picture Consider quantum channels that transmit only quantum information. This is precisely a quantum operation , whose properties we now summarize. Let ... on math H A math . In the Schr dinger picture , a purely quantum channel is a map between density ... As required by postulates of quantum mechanics, needs to be linear. Since density matrices are positive ... have only defined quantum channel that transmits only quantum information. As stated in the introduction ... given so far needs to be generalized somewhat. A purely quantum channel, in the Heisenberg ... values, is an immediate example of a channel. Time evolution For a purely quantum system ... more details
E. Knill, Raymond Laflamme R. Laflamme , year title Complete QuantumTeleportation By Nuclear ... block of quantum computers. A quantum computer is a device for computation that makes direct use of quantum mechanical phenomena , such as quantum superposition superposition and quantum entanglement entanglement , to perform operations on data . Quantum computers are different from traditional computers based on transistor s. The basic principle behind quantum computation is that quantum properties .... ref http phm.cba.mit.edu papers 98.06.sciam 0698gershenfeld.html Quantum Computing with Molecules article in Scientific American by Neil Gershenfeld and Isaac L. Chuang ref A theoretical model is the quantum Turing machine , also known as the universal quantum computer. Although quantum computing is still in its infancy, experiments have been carried out in which quantum computational operations were executed on a very small number of qubits quantum bits . Both practical and theoretical research continues, and many national government and military funding agencies support quantum computing research to develop quantum computer s for both civilian and national security purposes, such as cryptanalysis . ref http qist.lanl.gov qcomp map.shtml Quantum Information Science and Technology Roadmap for a sense of where the research is heading. ref If large scale quantum computers can be built ... currently known algorithms for example integer factorization using Shor s algorithm or the Quantum algorithm Quantum Simulation simulation of quantum many body systems . Furthermore, there exist quantum ... classical algorithm. ref name Simon1994 Citation title On the power of quantum computation year ... simulate an arbitrary quantum computer. Hence, ignoring computational and space constraints, a quantum ... a one or a zero. A quantum computer maintains a sequence of qubit s. A single qubit can represent a one, a zero, or, crucially, any quantum superposition of these moreover, a pair of qubits can be in any ... more details
Quantum healing is a metaphysical claim that the mind can heal the body. Details Quantum mysticism Category Quantum mysticism Newage stub ... more details
wiktionarypar quantumQuantum theory may mean In science Quantum mechanics , an umbrella term for describing all quantum physics Old quantum theory under the Bohr model Quantum field theory , a generic type of relativistic quantum theory, which includes Quantum electrodynamics Quantum chromodynamics Electroweak interaction Quantum gravity , a general term for theories intended to quantize general relativity Quantum optics In popular culture Quantum Theory , the final song from Jarvis album , by Jarvis Cocker Quantum Theory video game is also the name of a console video game for PS3 and Xbox 360, released in 2010 See also Introduction to quantum mechanics Continuum theories , roughly opposite to quantum theories Quantum Cognition , using quantum probability theory to model human behavior disambig th ... more details
Quantum Philosophy may refer to Quantum Philosophy book , by Roland Omn s Quantum metaphysics disambig Long comment to avoid being listed on short pages ... more details
s. Another active research topic is quantumteleportation , which deals with techniques to transmit ...seeintro Quantum mechanics File QuantumHarmonicOscillatorAnimation.gif thumb 300px right Some trajectories of a harmonic oscillator a ball attached to a Hooke s law spring in classical mechanics A B and quantum mechanics C H . In quantum mechanics, the position of the ball is represented by a wave called ... physics, where the oscillator can have any energy. Quantum mechanics , also known as quantum physics or quantum theory , is a branch of physics providing a mathematical description of Wave ... . Quantum mechanics describes the time evolution of physical systems via a mathematical structure ... in a given state at a given time. Quantum mechanics also allows one to calculate the effect ... . Quantum mechanics differs significantly from classical mechanics in its predictions when the scale of observations becomes comparable to the atomic and sub atomic scale, the so called quantum realm ... of quantum mechanics. Phenomena such as superconductivity , the properties of materials such as semiconductors ... momentum. In the context of quantum mechanics, the wave particle duality of energy and matter and the uncertainty ... scale objects. The mathematical formulations of quantum mechanics are abstract. Similarly, the implications ... of complex number s and linear functional s. The wavefunction treats the object as a quantum ... of quantum mechanics do not have models that are easily visualized in terms of classical mechanics for instance, the ground state in the quantum mechanical model is a non zero energy state that is the lowest ... anomalies remain. Historically, the earliest versions of quantum mechanics were formulated in the first ... can be viewed as quantum theories of matter and electromagnetic radiation. Following Schr dinger s breakthrough in deriving his wave equation in the mid 1920s, quantum theory was significantly reformulated away from the old quantum theory , towards the quantum mechanics of Werner Heisenberg , Max ... more details
concept, noted for being a precedent to non locality as well as QuantumTeleportation and Superdense ... the best known applications of entanglement are superdense coding and quantumteleportation . ref ... QuantumTeleportation, Nature vol.390, 11 Dec 1997, pp.575. Summarized at http www.quantum.univie.ac.at ...Quantum mechanics cTopic Fundamental concepts Quantum entanglement is a property of the quantum state quantum mechanical state of a system containing two or more Physical body object s, where the objects that make up the system are linked in such a way that the quantum state of any of them cannot be adequately ... spatially separated . Research into quantum entanglement was initiated by the EPR paradox paper ... the word entanglement was used to refer to quantum particles that had been in interaction with each other. ref name MK Kumar, M., Quantum , Icon Books, 2009, p. 313. ref Although these first studies ... as a fundamental feature of quantum mechanics, and the focus of the research changed to its utilisation as a resource. History The counterintuitive predictions of quantum mechanics about systems ... A, Podolsky B, Rosen N title Can Quantum Mechanical Description of Physical Reality Be Considered ... ref In this study, they formulated the EPR paradox , a thought experiment that attempted to show that quantum mechanics quantum mechanical theory was Incompleteness of quantum physics incomplete . However ... trait of quantum mechanics, the one that enforces its entire departure from classical ... of relativity . ref Alisa Bokulich, Gregg Jaeger, Philosophy of Quantum Information and Entanglement ...&rep rep1&type pdf Quantum Entanglement and Communication Complexity 1998 , by M. P. Hobson et. al ... much work on and discussion about the foundations of quantum mechanics, perhaps most famously De Broglie Bohm theory Bohm s interpretation of quantum mechanics. Despite this great interest, the flaw ... one of their key assumptions, the principle of locality , conflicted with quantum theory. Specifically ... more details
history Jenny Quantum was born January 1, 2000 in Singapore , during the death of Jenny Sparks , where ... 13 as a child and Authority Revolution 7 as a teenager. Quantum is the corporeal spirit of the 21st ... volume of The Authority , it is revealed that Jenny Quantum had a twin sister. It was believed ... that she was Jenny Quantum s biological mother. She was on the Carrier when another series of fractures ... of her death, Jenny s was able to transfer to her body. In Authority Revolution 7, Quantum forced ... Atom Armageddon 9, Captain Atom inadvertently kills Jenny Quantum when she attempts to quiet ... Grant Morrison Morrison Gene Ha Ha version of The Authority show Jenny Quantum , now renamed ... also appears to have the same line up as the previous version. Quantum Quarx is wearing a t shirt with the Singaporean ... stated that Jenny Quantum s powers are far in excess of those possessed by her predecessor Jenny Sparks ... of assorted time periods on the back of a giant turtle. Jenny Quantum s lineage extends to the earliest ... to shape the century , indicates that as was the case with Jenny Sparks Quantum s attitudes and experience of life will correlate with those of the world during the 21st century. DEFAULTSORT Quantum ... more details
Quantum jump may refer to Atomic electron transition or similar transitions between quantum state s, which are scientific phenomena Quantum Jump , a British rock music band disambig ... more details
wiktionary quantum In general, a quantum plural quanta may refer to In physics, quantum is an elementary indivisible entity. In particular Quantum physics includes several types of theories which make use of quanta . It relates to quantum mechanics , various iterations of quantum theory disambiguation quantum theory and quantum field theory . The term quantum leap is often used metaphorically to refer to any kind of step change. In chemistry, theoretical quantum chemistry uses quantum theory In neuroscience , quantum refers to a discrete component of a physiological response In cognitive science the following concepts are used Quantum brain Quantum mind In computer science, quantum computer is a hypothetical computer which functioning is based on quantum theory Quantum may also refer to Quantum a ride at Thorpe Park Quantum of Solace , the 22nd James Bond adventure, with released in October and November 2008 Quantum James Bond , an organization featured in the above movie and Casino Royale Quantum of Solace game , a game based on the movie A time slice in computer Preemption computing Time slice pre emptive multitasking Quantum Magazine , a physics and science magazine Quanta Cura , a Papal encyclical Quantum Corporation , a manufacturer of computer data storage products Quantum comics , a comic book character Quantum album Quantum album , an album by Planet X Quantum compression , a file compression format Quantum TV series , a half hour science journalism series aired by the Australian Broadcasting Corporation between 1985 and 2001 Volkswagen QuantumQuantum Sports Cars , a British built low volume car manufacturer Quantum, a line of Maksutov telescope s that were manufactured by Optical Techniques Incorporated OTI Hobart Quantum , a service scale Quantum video game , an arcade game released by Atari in 1982 Quantum 2010 video game , an upcoming game developed by Team Tachyon and published by Tecmo for the PlayStation 3 Quantum Stream Ultraman Gaia s L style weapon ... more details
In quantum mechanics , a quantum process is a somewhat ambiguous term which usually refers to the time evolution of an open quantum system open quantum system. Under very general assumptions, a quantum process is described by the quantum operation formalism also known as a quantum dynamical map , which is a linear map linear , completely positive map from the set of density matrix density matrices to itself. For instance, in quantum process tomography , the unknown quantum process is assumed to be a quantum operation. However, not all quantum processes can be captured within the quantum operation formalism ref Philip Pechukas, http prl.aps.org abstract PRL v73 i8 p1060 1 Reduced Dynamics Need Not Be Completely Positive , Phys. Rev. Lett. 73, 1060 1994 . ref in principle, the density matrix of a quantum system can undergo completely arbitrary time evolution. References references M. Nielsen and I. Chuang, Quantum Computation and Quantum Information , Cambridge University Press, 2000 Category Quantum mechanics Quantum stub ... more details
Quantum technology is a new field of physics and engineering, which transitions some of the stranger features of quantum mechanics , especially quantum entanglement , into practical applications such as quantum computing , quantum cryptography , quantum simulation, quantum metrology , quantum sensing , and quantum imaging . The field of quantum technology was first outlined in a 1997 book by Gerard ... P. Dowling and Gerard J. Milburn , ref http journals.royalsociety.org content bdm1frlb9tfmr3ar Quantum Technology The Second Quantum Revolution , J.P.Dowling and G.J.Milburn, Phil. Trans. R. Soc. A 361, 3655 2003 ref ref http arxiv.org abs quant ph 0206091 Quantum Technology The Second Quantum Revolution ..., Philosophy, and Quantum Technology , D.Deutsch in the Proceedings of the Sixth International Conference on Quantum Communication, Measurement and Computing, Shapiro, J.H. and Hirota, O., Eds. Rinton Press, Princeton, NJ. 2003 ref The field of quantum technology has benefited immensely from the influx of new ideas from the field of quantum information processing , particularly quantum computing . Disparate areas of quantum physics , such as quantum optics , atom optics , quantum electronics , and quantum nanomechanical devices , have been unified under the search for a quantum computer and given a common language, that of quantum information theory. References reflist External links http www.sciencenews.org articles 20011208 bob16.asp Gadgets from the Quantum Spookhouse , Science News, Vol ... Timing Quantum linked photons coordinate clock ticks , Science News, Vol. 166, No. 13, Sept. 25, 2004 ... full 412417a0.html Quantum enhanced positioning and clock synchronization , Nature 412, 417 419 26 July 2001 . http minty.stanford.edu Collective Quantum Feedback Control and Metrology with Cold Atoms http www.fi.infn.it GGI grav space EGS w pdf kasevich.pdf Quantum Atomic Gravity Gradiometer http www.scienceagogo.com news 20050110221715data trunc sys.shtml Real World Quantum Effects Demonstrated ... more details
Quantum leap may refer to Atomic electron transition or similar transitions between quantum state s, which are scientific phenomena Quantum Leap TV series Quantum Leap TV series , a science fiction television series Sinclair QL , a 1980s personal computer made by Sinclair Research wiktionary quantum leap an abrupt change per Wiktionary Wiktionary quantum leap disambig ... more details
Quantum hydrodynamics QHD is most generally the study of hydrodynamic systems which demonstrate behavior implicit in quantum mechanics quantum subsystems usually quantum tunneling . They arise in semiclassical semiclassical mechanics in the study of semiconductor devices, in which case being derived from the Boltzmann equation Wigner Boltzmann equation . In quantum chemistry they arise as solutions to chemical kinetics chemical kinetic systems, in which case they are derived from the Schr dinger equation by way of Madelung equations . An important system of study in quantum hydrodynamics is that of superfluidity . Some other topics of interest in quantum hydrodynamics are quantum turbulence , quantized vortices , first sound first , second sound second and third sound , and quantum solvent s. The quantum hydrodynamic equation is an equation in Bohm interpretation Bohmian mechanics , which, it turns out, has a mathematical relationship to classical fluid dynamics see Madelung equations . This is a rich theoretical field. Some common experimental applications of these studies are in liquid helium He 3 and He 4 , and of the interior of neutron star s and the quark gluon plasma . Many famous scientists have worked in quantum hydrodynamics, including Richard Feynman , Lev Davidovich Landau Lev Landau , and Pyotr Leonidovich Kapitsa Pyotr L. Kapitsa . References Wyatt R.E. Quantum Dynamics with Trajectories Introduction to Quantum Hydrodynamics Springer, 2005 Category Quantum mechanics it Idrodinamica quantistica quantum stub ... more details
Quantum imaging ref http www.iop.org EJ abstract 1464 4266 4 3 372 Quantum Imaging , L A Lugiato et al. 2002 J. Opt. B Quantum Semiclass. Opt. 4 S176 S183. ref , ref http www.informaworld.com openurl?genre issue&issn 0950 0340&volume 53&issue 5 Special Issue on Quantum Imaging , Edited by Jonathan Dowling, Alessandra Gatti and Alexander Sergienko, Journal of Modern Optics, Volume 53 No. 5 2006 . ref , ref http ieeexplore.ieee.org xpl freeabs all.jsp?arnumber 4303053 Quantum Imaging , Yanhua Shih, IEEE Journal of Selected Topics in Quantum Electronics, 13 2007 1016. ref is a new sub field of quantum optics that exploits quantum correlations such as quantum entanglement of the electromagnetic field in order to image objects with a optical resolution resolution or other imaging criteria that is beyond what is possible in classical optics . Examples of quantum imaging are quantum ghost imaging , quantum lithography , and quantum sensing . Quantum imaging may someday be useful for storing patterns of data in quantum computers and transmitting large amounts of highly secure encrypted information. Quantum mechanics has shown that light has inherent uncertainties in its features, manifested as moment to moment fluctuations in its properties. Controlling these fluctuations which represent a sort of noise can improve detection of faint objects, produce better amplified images, and allow workers to more accurately position laser beams. ref http newswise.com articles view 541666 Newswise Physicists Produce Quantum Entangled Images Retrieved on June 12, 2008. ref External links http www.quantiki.org wiki index.php Quantum imaging Quantum Imaging Overview at Quantiki . References Reflist Category Quantum information science Category Quantum mechanics ... more details
Quantum mechanics cTopic Background Quantum topology is a branch of mathematics that connects quantum mechanics with low dimensional topology . Dirac notation provides a viewpoint of quantum mechanics which becomes amplified into a framework that can embrace the amplitudes associated with topological space s and the related embedding of one space within another such as knots and links in three dimensional space. This Bra ket notation of kets and bras can be generalised, becoming maps of vector space s associated with topological space s that allow tensor product s. ref Quantum Topology and Quantum Computing by Louis H. Kauffman ref Topological Tangle mathematics entanglement involving Link knot theory linking and Braid theory braiding can be intuitively related to quantum entanglement . ref Quantum Topology and Quantum Computing by Louis H. Kauffman ref See also Topological quantum field theory References Quantum topology by Louis H. Kauffman and Randy A. Baadhio, World Scientific Publishing Co Pte Ltd, 1993 reflist External links http www.ems ph.org journals journal.php?jrn qt Quantum Topology at EMS Publishing House. Category Quantum mechanics Category Topology zh ... more details
Quantum heterostructure is a heterostructure in a substrate usually a semiconductor material , where size restricts the movements of the charge carrier s forcing them into a quantum confinement. This leads to the formation of a set of discrete energy levels at which the carriers can exist. Quantum heterostructures have sharper density of states than structures of more conventional sizes. Quantum heterostructures are important for fabrication of short wavelength light emitting diode s and diode laser s, and for other optoelectronic applications, eg. high efficiency photovoltaic cell s. Examples of quantum heterostructures confining the carriers in quasi two, one and zero dimensions are Quantum well s Quantum wire s Quantum dot s See also http www.ecse.rpi.edu schubert Light Emitting Diodes dot org chap04 chap04.htm phys stub Category Quantum electronics Category Nanomaterials Category Semiconductor structures ... more details
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