Results 11 to 20 of about 163,214 (312)
Classical and quantum capacities of a fully correlated amplitude damping channel [PDF]
Physical Review A, 2013 We study information transmission over a fully correlated amplitude damping channel acting on two qubits. We derive the single-shot classical channel capacity and show that entanglement is needed to achieve the channel best performance.
A. D’Arrigo +3 more
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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
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Time-correlated quantum amplitude-damping channel [PDF]
Physical Review A, 2003 We analyze the problem of sending classical information through qubit channels where successive uses of the channel are correlated. This work extends the analysis of C. Macchiavello and G. M. Palma to the case of a non-Pauli channel - the amplitude damping channel. Using the channel description outlined in S.
Ye Yeo, Andrew Skeen
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Squeezed generalized amplitude damping channel [PDF]
Physical Review A, 2008 Accepted for publication in Physical Review A; note on methods of generating bath squeezing added in Section II A; 12 pages, 7 ...
R. Srikanth, Subhashish Banerjee
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Protecting entanglement from correlated amplitude damping channel using weak measurement and quantum measurement reversal [PDF]
Quantum Information Processing, 2016 Based on the quantum technique of weak measurement, we propose a scheme to protect the entanglement from correlated amplitude damping decoherence. In contrast to the results of memoryless amplitude damping channel, we show that the memory effects play a ...
Xing Xiao +4 more
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The two-qubit amplitude damping channel: Characterization using quantum stabilizer codes [PDF]
Annals of Physics, 2016 A protocol based on quantum error correction based characterization of quantum dynamics (QECCD) is developed for quantum process tomography on a two-qubit system interacting dissipatively with a vacuum bath. The method uses a 5-qubit quantum error correcting code that corrects arbitrary errors on the first two qubits, and also saturates the quantum ...
S. Omkar +3 more
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Coherence evolution in two-qubit system going through amplitude damping channel [PDF]
Science China Physics, Mechanics & Astronomy, 2017 In this paper, we analyze the evolution of quantum coherence in a two-qubit system going through the amplitude damping channel. After they have gone through this channel many times, we analyze the systems with respect to the coherence of their output ...
Ming‐Jing Zhao, Teng Ma, Yu-Quan Ma
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Quantum capacity of an amplitude-damping channel with memory [PDF]
Quantum Information Processing, 2014 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
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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
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Resonant Multilevel Amplitude Damping Channels [PDF]
Quantum, 2023 We introduce a new set of quantum channels: resonant multilevel amplitude damping (ReMAD) channels. Among other instances, they can describe energy dissipation effects in multilevel atomic systems induced by the interaction with a zero-temperature bosonic environment.
Stefano Chessa, Vittorio Giovannetti
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