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Quantum channel measurement with local quantum Bernoulli noises [PDF]
Scientific Reports, 2022 As an important stochastic process, quantum Bernoulli noises has a very important physical background and is an important research object in the field of quantum information.
Qi Han, Yanan Han, Yaxin Kou, Ning Bai
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Entropy of a quantum channel [PDF]
Physical Review Research, 2021 The von Neumann entropy of a quantum state is a central concept in physics and information theory, having a number of compelling physical interpretations.
Gilad Gour, Mark M. Wilde
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Quantum Information Transmission Over a Partially Degradable Channel [PDF]
IEEE Access, 2014 We investigate a quantum coding for quantum communication over a partially degradable (PD) quantum channel. For a PD channel, the degraded environment state can be expressed from the channel output state up to a degrading map.
Laszlo Gyongyosi
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Probabilistic Teleportation of Arbitrary Two-Qubit Quantum State via Non-Symmetric Quantum Channel [PDF]
Entropy, 2018 Quantum teleportation has significant meaning in quantum information. In particular, entangled states can also be used for perfectly teleporting the quantum state with some probability. This is more practical and efficient in practice.
Kan Wang +3 more
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Quantumness and Dequantumness Power of Quantum Channels
Entropy, 2022 Focusing on the dynamics of quantumness in ensembles, we propose a framework to qualitatively and quantitatively characterize quantum channels from the perspective of the amount of quantumness in ensembles that a quantum channel can induce or reduce ...
Hongting Song, Nan Li
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Dividing Quantum Channels [PDF]
Communications in Mathematical Physics, 2008 welcome (23 pages); references and comments ...
Michael M. Wolf, J. I. Cirac
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Information transmission with continuous variable quantum erasure channels [PDF]
Quantum, 2023 Quantum capacity, as the key figure of merit for a given quantum channel, upper bounds the channel's ability in transmitting quantum information. Identifying different types of channels, evaluating the corresponding quantum capacity, and finding the ...
Changchun Zhong +2 more
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Quasirandom quantum channels [PDF]
Quantum, 2020 Mixing (or quasirandom) properties of the natural transition matrix associated to a graph can be quantified by its distance to the complete graph. Different mixing properties correspond to different norms to measure this distance. For dense graphs, two such properties known as spectral expansion and uniformity were shown to be equivalent in seminal ...
Bannink, Tom +3 more
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Channeling Quantum Criticality
Physical Review Letters, 2023 We analyze the effect of decoherence, modelled by local quantum channels, on quantum critical states and we find universal properties of the resulting mixed state's entanglement, both between system and environment and within the system. Renyi entropies exhibit volume law scaling with a subleading constant governed by a "$g$-function" in conformal ...
Yijian Zou +2 more
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QUANTUM TELEPORTATION OF ENTANGLED STATES VIA GENERALIZED PHOTON-ADDED PAIR COHERENT STATE
Tạp chí Khoa học Đại học Đà Lạt, 2023 In this paper, we study the quantum teleportation of an unknown atomic state based on the two-photon Jaynes-Cummings model, consisting of an effective two-level atom with a two-mode field in the generalized photon-added pair coherent state (GPAPCS).
Thi Hong Thanh Le +2 more
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