Results 11 to 20 of about 352,049 (339)
Capacity Theorems for Quantum Multiple Access Channels: Classical-Quantum and Quantum-Quantum Capacity Regions [PDF]
IEEE Transactions on Information Theory, 2005 We consider quantum channels with two senders and one receiver. For an arbitrary such channel, we give multi-letter characterizations of two different two-dimensional capacity regions.
Devetak, Igor +2 more
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Quantum rebound capacity [PDF]
Physical Review A, 2019 Inspired by the power of abstraction in information theory, we consider quantum rebound protocols as a way of providing a unifying perspective to deal with several information-processing tasks related to and extending quantum channel discrimination to ...
Das, Siddhartha, Wilde, Mark M.
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Detecting quantum capacities of continuous-variable quantum channels
Physical Review Research, 2022 Quantum communication channels and quantum memories are the fundamental building blocks of large-scale quantum communication networks. Estimating their capacity to transmit and store quantum information is crucial in order to assess the performance of ...
Ya-Dong Wu, Giulio Chiribella
doaj +3 more sources
Potential capacities of quantum channels [PDF]
IEEE Transactions on Information Theory, 2016 We introduce potential capacities of quantum channels in an operational way and provide upper bounds for these quantities, which quantify the ultimate limit of usefulness of a channel for a given task in the best possible context.
Winter, Andreas, Yang, Dong
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Quantum Entanglement Capacity with Classical Feedback [PDF]
Physical Review A, 2007 For any quantum discrete memoryless channel, we define a quantity called quantum entanglement capacity with classical feedback ($E_B$), and we show that this quantity lies between two other well-studied quantities.
A. W. Leung +5 more
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Quantum Confinement and Negative Heat Capacity [PDF]
EPL (Europhysics Letters), 2013 Thermodynamics dictates that the specific heat of a system is strictly non-negative. However, in finite classical systems there are well known theoretical and experimental cases where this rule is violated, in particular finite atomic clusters.
Alharbi, Fahhad +3 more
core +5 more sources
Capacities of Quantum Erasure Channels [PDF]
Physical Review Letters, 1997 4 pages, RevTeX, epsf macros to include 2 eps figures. See also http://vesta.physics.ucla.edu/~smolin/ Version 2, submitted to Phys. Rev.
Charles H. Bennett +2 more
openalex +5 more sources
Computing Quantum Channel Capacities [PDF]
IEEE Transactions on Information Theory, 2021 v4: 22 pages, 4 figures, new ...
Navneeth Ramakrishnan +3 more
openaire +6 more sources
Quantum reading capacity [PDF]
New Journal of Physics, 2011 The readout of a classical memory can be modelled as a problem of quantum channel discrimination, where a decoder retrieves information by distinguishing the different quantum channels encoded in each cell of the memory [S. Pirandola, Phys. Rev. Lett. 106, 090504 (2011)].
PIRANDOLA S +4 more
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QUANTUM ZERO-ERROR CAPACITY [PDF]
International Journal of Quantum Information, 2005 We define a new kind of quantum channel capacity by extending the concept of zero-error capacity for a noisy quantum channel. The necessary requirement for which a quantum channel has zero-error capacity greater than zero is given. Finally, we point out some directions on how to calculate the zero-error capacity of such channels.
Medeiros, Rex A. C. +1 more
openaire +3 more sources