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Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels.
An unknown quantum state \ensuremath{\Vert}\ensuremath{\varphi}〉 can be disassembled into, then later reconstructed from, purely classical information and purely nonclassical Einstein-Podolsky-Rosen…
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Mixed-state entanglement and quantum error correction.
TLDR
It is proved that an EPP involving one-way classical communication and acting on mixed state M (obtained by sharing halves of Einstein-Podolsky-Rosen pairs through a channel) yields a QECC on \ensuremath{\chi} with rate Q=D, and vice versa, and it is proved Q is not increased by adding one- way classical communication.
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Purification of noisy entanglement and faithful teleportation via noisy channels.
TLDR
Upper and lower bounds on the yield of pure singlets ($\ket{\Psi^-}$) distillable from mixed states $M$ are given, showing $D(M)>0$ if $\bra{Psi-}M\ket-}>\half$.
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Classical information capacity of a quantum channel.
TLDR
If the sender uses a block coding scheme consisting of a choice of code words that respects the a priori probabilities of the letter states, and the receiver distinguishes whole words rather than individual letters, then the information transmitted can be made arbitrarily close to H and never exceeds H, providing a precise information-theoretic interpretation of von Neumann entropy in quantum mechanics.
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Optimal detection of quantum information.
TLDR
The most efficient set of operations of that type that the authors were able to design falls short of a single combined measurement, performed on both system together.
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Lower bound for accessible information in quantum mechanics.
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Limitation on the amount of accessible information in a quantum channel.
We prove a new result limiting the amount of accessible information in a quantum channel. This generalizes Kholevo{close_quote}s theorem and implies it as a simple corollary. Our proof uses the…
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Spatially Extended Avalanches in a Hysteretic Capillary Condensation System: Superfluid 4He in Nuclepore.
TLDR
The avalanches in this system are shown to be nonlocal events which involve pores distributed at low density across the entire sample and the nonlocal avalanche behavior is shown to been enabled by the presence of a superfluid film connection among the pores.
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Quantum measurements of finite duration.
  • Pérès, Wootters
  • Physics
    Physical review. D, Particles and fields
  • 15 October 1985
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Microscopic dispersive quantum-mechanical theory of phonon polaritons.
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