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Quantum capacity analysis of multi-level amplitude damping channels [PDF]

open access: goldCommunications Physics, 2021
AbstractEvaluating capacities of quantum channels is the first purpose of quantum Shannon theory, but in most cases the task proves to be very hard. Here, we introduce the set of Multi-level Amplitude Damping quantum channels as a generalization of the standard qubit Amplitude Damping Channel to quantum systems of finite dimension d.
Stefano Chessa, Vittorio Giovannetti
openalex   +6 more sources

Information capacity analysis of fully correlated multilevel amplitude damping channels [PDF]

open access: greenPhysical Review A, 2023
The primary objective of quantum Shannon theory is to evaluate the capacity of quantum channels. In spite of the existence of rigorous coding theorems that quantify the transmission of information through quantum channels, superadditivity effects limit ...
Rajiuddin Sk, Prasanta K. Panigrahi
openalex   +3 more sources

ENTANGLEMENT-ASSISTED CLASSICAL INFORMATION CAPACITY OF THE AMPLITUDE DAMPING CHANNEL [PDF]

open access: greenModern Physics Letters B, 2003
In this paper, we calculate the entanglement-assisted classical information capacity of the amplitude damping channel and compare it with the particular mutual information which is considered as the entanglement-assisted classical information capacity of this channel in Ref. 6. It is shown that the difference between them is very small.
Xian-Ting Liang
openalex   +5 more sources

Channel-Adapted Quantum Error Correction for the Amplitude Damping Channel [PDF]

open access: greenIEEE Transactions on Information Theory, 2008
11 pages, 12 ...
Andrew S. Fletcher   +2 more
openalex   +4 more sources

Intraparticle entanglement in noisy quantum channels: degradation and revival through amplitude damping

open access: diamondFrontiers in Quantum Science and Technology
Quantum correlations between two or more different degrees of freedom of the same particle are sometimes referred to as intraparticle entanglement. In this work, we study these intraparticle correlations between two different degrees of freedom under ...
Animesh Sinha Roy   +6 more
doaj   +2 more sources

Entropy squeezing for a V-type three-level atom interacting with a single-mode field and passing through the amplitude damping channel with weak measurement* [PDF]

open access: greenChinese Physics B, 2020
The entropy squeezing of a V-type three-level atom interacting with a single-mode field and passing through the amplitude damping channel is investigated in detail.
Cui-Yu Zhang, Mao-Fa Fang
openalex   +2 more sources

Generation of intraparticle quantum correlations in amplitude damping channel and its robustness

open access: green, 2023
Quantum correlations between two or more different degrees of freedom of the same particle is sometimes referred to as intraparticle entanglement. In this work, we study these intra-particle correlations between two different degrees of freedom under various decoherence channels viz. amplitude damping, depolarising and phase damping channels.
Animesh Sinha Roy   +4 more
openalex   +4 more sources

Quantum Correlation in Squeezed Generalized Amplitude Damping Channels with Memory [PDF]

open access: goldScientific Reports, 2019
AbstractA squeezed generalized amplitude damping (SGAD) channel is a quantum channel that models a general noise process incorporating the effects of bath squeezing, dissipation, and decoherence. In this paper, we analyze the dynamics of quantum entanglement and discord in the SGAD channel with memory.
Youngmin Jeong, Hyundong Shin
openalex   +4 more sources

Queue-Channel Capacities with Generalized Amplitude Damping

open access: green, 2021
The generalized amplitude damping channel (GADC) is considered an important model for quantum communications, especially over optical networks. We make two salient contributions in this paper apropos of this channel. First, we consider a symmetric GAD channel characterized by the parameter $n=1/2,$ and derive its exact classical capacity, by ...
Vikesh Siddhu   +4 more
openalex   +4 more sources

Protecting three-dimensional entanglement from the correlated amplitude damping channel

open access: yesChinese Journal of Physics
14 pages,, 6 figures, comments are welcome!
Xing Xiao   +3 more
semanticscholar   +3 more sources

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