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Symbolic model checking quantum circuits in Maude [PDF]

open access: yesPeerJ Computer Science, 2023
This article presents a symbolic approach to model checking quantum circuits using a set of laws from quantum mechanics and basic matrix operations with Dirac notation.
Canh Minh Do, Kazuhiro Ogata
doaj   +3 more sources

Information transmission with continuous variable quantum erasure channels [PDF]

open access: yesQuantum, 2023
Quantum capacity, as the key figure of merit for a given quantum channel, upper bounds the channel's ability in transmitting quantum information. Identifying different types of channels, evaluating the corresponding quantum capacity, and finding the ...
Changchun Zhong   +2 more
doaj   +3 more sources

Robust entanglement distribution via quantum network coding [PDF]

open access: yesNew Journal of Physics, 2016
Many protocols of quantum information processing, like quantum key distribution or measurement-based quantum computation, ‘consume’ entangled quantum states during their execution.
Michael Epping   +2 more
doaj   +2 more sources

Beating no-go theorems by engineering defects in quantum spin models [PDF]

open access: yesNew Journal of Physics, 2015
Diverse no-go theorems exist, ranging from no-cloning to monogamies of quantum correlations and Bell inequality violations, which restrict the processing of information in the quantum world.
Debasis Sadhukhan   +4 more
doaj   +4 more sources

Coding Theorems for Quantum Channels [PDF]

open access: yes, 1998
The more than thirty years old issue of the (classical) information capacity of quantum communication channels was dramatically clarified during the last years, when a number of direct quantum coding theorems was discovered.
Holevo, Alexander S.
core   +5 more sources

Hyperdense coding and superadditivity of classical capacities in hypersphere theories

open access: yesNew Journal of Physics, 2015
In quantum superdense coding, two parties previously sharing entanglement can communicate a two bit message by sending a single qubit. We study this feature in the broader framework of general probabilistic theories.
Serge Massar   +2 more
doaj   +2 more sources

The chain rule implies Tsirelson's bound: an approach from generalized mutual information

open access: yesNew Journal of Physics, 2012
In order to analyze an information theoretical derivation of Tsirelson's bound based on information causality, we introduce a generalized mutual information (GMI), defined as the optimal coding rate of a channel with classical inputs and general ...
Eyuri Wakakuwa, Mio Murao
doaj   +2 more sources

Continuous-variable dense coding via a general Gaussian state: Monogamy relation [PDF]

open access: yes, 2014
We study a continuous variable (CV) dense-coding protocol, originally proposed to employ a two-mode squeezed state, using a general two-mode Gaussian state as a quantum channel.
Ji, Se-Wan   +3 more
core   +5 more sources

General Scheme for Perfect Quantum Network Coding with Free Classical Communication

open access: yesInternational Colloquium on Automata, Languages and Programming, 2009
This paper considers the problem of efficiently transmitting quantum states through a network. It has been known for some time that without additional assumptions it is impossible to achieve this task perfectly in general -- indeed, it is impossible even
K. Iwama   +9 more
core   +3 more sources

Quantum secure direct communication with private dense coding using general preshared quantum state [PDF]

open access: yesPhysical Review Applied, 2021
We study quantum secure direct communication by using a general preshared quantum state and a generalization of dense coding. In this scenario, Alice is allowed to apply a unitary on the preshared state to encode her message, and the set of allowed ...
Jiawei Wu, G. Long, Masahito Hayashi
semanticscholar   +1 more source

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