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
openalex +6 more sources
Simple Non-Markovian Microscopic Models for the Depolarizing Channel of a Single Qubit [PDF]
Phys. Scr. 86 (2012) 065004, 2012 The archetypal one-qubit noisy channels ---depolarizing, phase-damping and amplitude-damping channels--- describe both Markovian and non-Markovian evolution. Simple microscopic models for the depolarizing channel, both classical and quantum, are considered.
Franco, R. Lo, Romero, K. M. Fonseca
arxiv +4 more sources
ENTANGLEMENT-ASSISTED CLASSICAL INFORMATION CAPACITY OF THE AMPLITUDE DAMPING CHANNEL [PDF]
Modern 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]
IEEE Transactions on Information Theory, 2008 11 pages, 12 ...
Andrew S. Fletcher +2 more
openalex +4 more sources
Channel-Adapted Quantum Error Correction for the Amplitude Damping Channel [PDF]
arXiv, 2007 We consider error correction procedures designed specifically for the amplitude damping channel. We analyze amplitude damping errors in the stabilizer formalism. This analysis allows a generalization of the [4,1] `approximate' amplitude damping code of quant-ph/9704002.
Andrew S. Fletcher +2 more
arxiv +3 more sources
Improving two - qubit state teleportation affected by amplitude damping noise based on choosing appropriate quantum channel [PDF]
arXiv, 2017 We consider two qubit teleportation via quantum channel affected by amplitude damping noise. Addressing the same problem, X. Hu, Y. Gu, Q. Gong and G. Guo [Phys. Rev. A 81, 054302, (2010)] recently showed that in presence of noise, subjecting more qubits in quantum channel to amplitude damping can increase the fidelity of teleportation protocol ...
Hop Nguyen Van, Hoang-Anh Le
arxiv +3 more sources
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
openalex +6 more sources
Protecting quantum correlations in presence of generalised amplitude damping channel: the two-qubit case [PDF]
Journal of Physics A: Mathematical and Theoretical, 2020 Abstract Any kind of quantum resource useful in different information processing tasks is vulnerable to several types of environmental noise. Here we study the behaviour of quantum correlations such as entanglement and steering in two-qubit systems under the application of the generalised amplitude damping channel and propose two ...
Suchetana Goswami +2 more
openalex +5 more sources
Quantum Correlation in Squeezed Generalized Amplitude Damping Channels with Memory [PDF]
Scientific 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
On the Entropy Gain Under the Action of the Amplitude Damping Channel on Qutrit [PDF]
Journal of Russian Laser Research, 2014 After realizing qutrit in the form of a bipartite system, we estimate from below the entropy gain under the action of the amplitude damping channel.
Г. Г. Амосов +1 more
openalex +4 more sources