Time correlated quantum amplitude damping channel [PDF]
Physical Review A, 2002 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
arxiv +7 more sources
Protecting nonlocal quantum correlations in correlated squeezed generalized amplitude damping channel [PDF]
Scientific Reports, 2022 Nonlocal quantum correlations, such as quantum entanglement, quantum steering, and Bell nonlocality, are crucial resources for quantum information tasks.
Shuo Wang +6 more
doaj +6 more sources
The squeezed generalized amplitude damping channel [PDF]
Physical Review A, 2007 Squeezing of a thermal bath introduces new features absent in an open quantum system interacting with an uncorrelated (zero squeezing) thermal bath. The resulting dynamics, governed by a Lindblad-type evolution, extends the concept of a generalized amplitude damping channel, which corresponds to a dissipative interaction with a purely thermal bath ...
R. Srikanth, Subhashish Banerjee
arxiv +7 more sources
Enhanced Superdense Coding over Correlated Amplitude Damping Channel [PDF]
Entropy, 2019 Quantum channels with correlated effects are realistic scenarios for the study of noisy quantum communication when the channels are consecutively used. In this paper, superdense coding is reexamined under a correlated amplitude damping (CAD) channel. Two
Yan-Ling Li +3 more
doaj +8 more sources
Classical and quantum capacities of a fully correlated amplitude damping channel [PDF]
Physical Review A 88, 042337 (2013), 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. We discuss the degradability properties of the channel and evaluate the quantum capacity for any value of the noise ...
A. D’Arrigo +3 more
arxiv +10 more sources
Protecting the Entanglement of X-Type Systems via Weak Measurement and Reversal in the Generalized Amplitude Damping Channel [PDF]
EntropyThe study of system evolution in generalized amplitude damping is of great significance in quantum information science and quantum computing. As an important quantum noise channel, the generalized amplitude damping channel can describe the general ...
Meijiao Wang +6 more
doaj +3 more sources
Examining the quantum fisher information in the interaction of a dirac system with a squeezed generalized amplitude damping channel [PDF]
Scientific ReportsThe inherent association between real quantum systems and their surrounding environment invariably results in decoherence, leading to the loss of entanglement.
C. Iyen +5 more
doaj +3 more sources
Information-theoretic aspects of the generalized amplitude-damping channel [PDF]
Physical Review A, 2020 The generalized amplitude damping channel (GADC) is one of the sources of noise in superconducting-circuit-based quantum computing. It can be viewed as the qubit analogue of the bosonic thermal channel, and it thus can be used to model lossy processes in
Sumeet Khatri +2 more
core +8 more sources
Quantum capacity analysis of multi-level amplitude damping channels [PDF]
Commun. Phys. 4, 22 (2021), 2020 The set of Multi-level Amplitude Damping (MAD) quantum channels is introduced as a generalization of the standard qubit Amplitude Damping Channel to quantum systems of finite dimension $d$. In the special case of $d=3$, by exploiting degradability, data-processing inequalities, and channel isomorphism, we compute the associated quantum and private ...
Stefano Chessa, Vittorio Giovannetti
arxiv +8 more sources
Generation of intraparticle quantum correlations in amplitude damping channel and its robustness [PDF]
arXiv, 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
arxiv +5 more sources