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... spread even reached the late-night talk shows. But a study by Madelaine Böhme, a palaeontologist at the University of Munich, to be published in next month’s issue of Geology, could help salvage the snakehead’s public image. She says that the fish’s extensive migratory history could tell researchers ...
... spread even reached the late-night talk shows. But a study by Madelaine Böhme, a palaeontologist at the University of Munich, to be published in next month’s issue of Geology, could help salvage the snakehead’s public image. She says that the fish’s extensive migratory history could tell researchers ...
Quantum Computers, Factoring, and Decoherence
... which differs from the one in eq. (4) (see Fig. 1) in that non-zero-probabilities have appeared between the peaks and that these peaks have decreased in amplitude. The qualitative effect of decoherence is well approximated by the simpler function 1−βaa′ ≡ δaa′ + (1 − δaa′ )β, where β is a constant. ...
... which differs from the one in eq. (4) (see Fig. 1) in that non-zero-probabilities have appeared between the peaks and that these peaks have decreased in amplitude. The qualitative effect of decoherence is well approximated by the simpler function 1−βaa′ ≡ δaa′ + (1 − δaa′ )β, where β is a constant. ...
Symposium Spring 2015 Schedule
... family of symmetric groups, and in doing so recovered the main results of Young's work (most notably the Young graph) in a more natural way. In this talk, I'll give a broad introduction to Gelfand-Zetlin theory and use it to outline the strategies used in the Okounkov-Vershik approach. ...
... family of symmetric groups, and in doing so recovered the main results of Young's work (most notably the Young graph) in a more natural way. In this talk, I'll give a broad introduction to Gelfand-Zetlin theory and use it to outline the strategies used in the Okounkov-Vershik approach. ...
Phys. Rev. Lett. 103, 190601 (2009): Quantum Thermal
... on the Feynman path centroid density [10]. This technique has been widely used to study quantum correlations in liquids [11]. Very recently an approach based on a generalised Langevin equation of motion has been proposed by Wang [12] to derive the conduction heat transfer through a one dimensional l ...
... on the Feynman path centroid density [10]. This technique has been widely used to study quantum correlations in liquids [11]. Very recently an approach based on a generalised Langevin equation of motion has been proposed by Wang [12] to derive the conduction heat transfer through a one dimensional l ...
Absolute Quantum Mechanics - Philsci
... ψ(ai , aj , ak , bi , bj , bk , ...) = ψ0 (ai + 6, aj , ak , bi + 6, bj , bk , ...), for example). These are regarded, in ordinary quantum theory, as physically distinct states, just as their analogues are in classical theory. Moreover, these states will, in general, exhibit interference with one an ...
... ψ(ai , aj , ak , bi , bj , bk , ...) = ψ0 (ai + 6, aj , ak , bi + 6, bj , bk , ...), for example). These are regarded, in ordinary quantum theory, as physically distinct states, just as their analogues are in classical theory. Moreover, these states will, in general, exhibit interference with one an ...
Fully nonlocal quantum correlations
... no-signalling principle, cannot be obtained by performing local measurements on any quantum system [2]. In particular, there exist nonsignalling correlations that exhibit stronger nonlocality, in the sense that they give larger Bell violations, than any quantum correlations [see Fig. 1(a)]. Interest ...
... no-signalling principle, cannot be obtained by performing local measurements on any quantum system [2]. In particular, there exist nonsignalling correlations that exhibit stronger nonlocality, in the sense that they give larger Bell violations, than any quantum correlations [see Fig. 1(a)]. Interest ...
Similarity between quantum mechanics and thermodynamics
... central importance is to identify the analogues of the entropy and temperature. According to Kelvin, the efficiency of the Carnot cycle can be used to define the absolute thermodynamic temperature as E C / E H = T C / T H [2]. Thus, an analogue of the “law of equipartition of energy”, which is viol ...
... central importance is to identify the analogues of the entropy and temperature. According to Kelvin, the efficiency of the Carnot cycle can be used to define the absolute thermodynamic temperature as E C / E H = T C / T H [2]. Thus, an analogue of the “law of equipartition of energy”, which is viol ...
Quantum Mechanical Model
... Integral values from l to -l (including 0) Related to the orientation of the orbital in space relative to the other orbitals ...
... Integral values from l to -l (including 0) Related to the orientation of the orbital in space relative to the other orbitals ...
Quantum Information and the Representation Theory of the
... such that D(E(ρ⊗n )) is close to ρ⊗n (for instance in the trace-distance sense kD(E(ρ⊗n )) − ρ⊗n k1 < ) [25]. Schumacher’s source compression theorem [28] states that for sufficiently large n, all rates above the von Neumann entropy of ρ, S(ρ) = −Tr(ρ log ρ) ...
... such that D(E(ρ⊗n )) is close to ρ⊗n (for instance in the trace-distance sense kD(E(ρ⊗n )) − ρ⊗n k1 < ) [25]. Schumacher’s source compression theorem [28] states that for sufficiently large n, all rates above the von Neumann entropy of ρ, S(ρ) = −Tr(ρ log ρ) ...
Quantum teleportation
Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. Because it depends on classical communication, which can proceed no faster than the speed of light, it cannot be used for faster-than-light transport or communication of classical bits. It also cannot be used to make copies of a system, as this violates the no-cloning theorem. While it has proven possible to teleport one or more qubits of information between two (entangled) atoms, this has not yet been achieved between molecules or anything larger.Although the name is inspired by the teleportation commonly used in fiction, there is no relationship outside the name, because quantum teleportation concerns only the transfer of information. Quantum teleportation is not a form of transportation, but of communication; it provides a way of transporting a qubit from one location to another, without having to move a physical particle along with it.The seminal paper first expounding the idea was published by C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres and W. K. Wootters in 1993. Since then, quantum teleportation was first realized with single photons and later demonstrated with various material systems such as atoms, ions, electrons and superconducting circuits. The record distance for quantum teleportation is 143 km (89 mi).