Results 11 to 20 of about 236,146 (309)
Quantum capacity of an amplitude-damping channel with memory [PDF]
Quantum Info Process 14, 765 (2015), 2012 We calculate the quantum capacity of an amplitude-damping channel with time correlated Markov noise, for two channel uses. Our results show that memory of the channel increases it's ability to transmit quantum information significantly. We analyze and compare our findings with earlier numerical results on amplitude-damping channel with memory. An upper
R. Jahangir, Nigum Arshed, A. H. Toor
arxiv +6 more sources
Average steered coherence in correlated amplitude damping channel
Results in Physics, 2022 The combined effects of memory effects due to correlated actions of the amplitude damping channel on two qubits and temporal correlations in the time evolution of each qubit on the average steered coherence (ASC) are explored.
Shi-Qing Tang
doaj +3 more sources
On the entropy gain under the action of amplitude damping channel on qutrit [PDF]
J. Russian Laser Research 35 (2014) 291-294, 2017 After realising qutrit in the form of bipartite system we estimate from below the entropy gain under the action of the amplitude damping channel.
Г. Г. Амосов +1 more
arxiv +5 more sources
Protecting steered coherence in squeezed generalized amplitude damping channel with memory
Results in Physics, 2023 We investigate the average steered coherence (ASC) and maximal steered coherence (MSC) of two qubits in a squeezed generalized amplitude damping channel modeled by a squeezed thermal bath with dissipation and memory. By considering the input Bell states,
Ya-Ting Lan, Ming-Liang Hu
doaj +3 more sources
Entanglement-assisted capacities of time-correlated amplitude-damping channel [PDF]
arXiv, 2013 We calculate the information capacities of a time-correlated amplitude-damping channel, provided the sender and receiver share prior entanglement. Our analytical results show that the noisy channel with zero capacity can transmit information if it has finite memory.
Nigum Arshed, A. H. Toor
arxiv +5 more sources
Information transmission over an amplitude damping channel with an arbitrary degree of memory [PDF]
Physical Review A, 2015 We study the performance of a partially correlated amplitude damping channel acting on two qubits. We derive lower bounds for the single-shot classical capacity by studying two kinds of quantum ensembles, one which allows to maximize the Holevo quantity ...
A. D’Arrigo +3 more
core +8 more sources
Information capacity analysis of fully correlated multi-level amplitude damping channels [PDF]
arXiv, 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 our understanding of the channel capacities.
Rajiuddin Sk, Prasanta K. Panigrahi
arxiv +5 more sources
Bounds on amplitude-damping-channel discrimination [PDF]
Physical Review A, 2021 15 pages, 7 figures.
Jason L. Pereira, Stefano Pirandola
openalex +5 more sources
Discriminating qubit amplitude damping channels [PDF]
Journal of Physics A: Mathematical and Theoretical, 2021 Abstract We address the issue of the discrimination between two-qubit amplitude damping channels by exploring several strategies. For the single-shot, we show that the excited state does not always give the optimal input, and that side entanglement assistance has limited benefit.
Milajiguli Rexiti, Stefano Mancini
openalex +5 more sources
Multi-Error-Correcting Amplitude Damping Codes [PDF]
Proceedings 2010 IEEE International Symposium on Information
Theory (ISIT 2010), Austin, USA, June 2010, pp. 2672-2676, 2010 We construct new families of multi-error-correcting quantum codes for the amplitude damping channel. Our key observation is that, with proper encoding, two uses of the amplitude damping channel simulate a quantum erasure channel. This allows us to use concatenated codes with quantum erasure-correcting codes as outer codes for correcting multiple ...
Duan, Runyao +3 more
arxiv +3 more sources