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Resource theories of quantum channels and the universal role of resource erasure
, 2019We initiate the systematic study of resource theories of quantum channels, i.e. of the dynamics that quantum systems undergo by completely positive maps, in abstracto: Resources are in principle all maps from one quantum system to another, but some maps ...
Zi-Wen Liu, A. Winter
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Proceedings of the Steklov Institute of Mathematics
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Gumerov, R. N., Khazhin, R. L.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gumerov, R. N., Khazhin, R. L.
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Quantum Channels and Quantum Operations
2023Abstract In this chapter we visit the ‘church of the larger Hilbert space’: we take a closer look at the relationship of pure and mixed quantum states via purification, and discuss a similar connection between completely positive and trace-preserving (CPTP) maps and unitary dynamics on a larger Hilbert space. We show that such CPTP maps,
Reinhold A. Bertlmann, Nicolai Friis
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The uncertainty of quantum channels in terms of variance
Quantum Information Processing, 2021Yuan Sun, Nan Li
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Quantum Channel Identification Problem
Physical Review A, 2001This paper explores an entirely new application of the quantum entanglement. The problem treated here is the quantum channel identification problem: given a parametric family {Γθ}θ of quantum channels, find the best strategy of estimating the true value of the parameter θ.
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Quantum Entropy and Quantum Channel
1997In this section, we discuss the entropy in usual quantum dynamical systems (QDS for short) described by Hilbert space terminology. A formulation of quantum mechanical entropy, started by Von Neumann around 1930, 20 years ahead of Shannon, now becomes a fundamental tool to analyze physical phenomena. Von Neumann entropy is defined for a density operator
R. S. Ingarden, A. Kossakowski, M. Ohya
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Conference on Lasers and Electro-Optics 2012, 2012
Channel capacities measure the ultimate communication abilities of noisy channels. I discuss capacities for optical channels with Gaussian noise and show the capacity for quantum information has surprising aspects that could be probed experimentally.
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Channel capacities measure the ultimate communication abilities of noisy channels. I discuss capacities for optical channels with Gaussian noise and show the capacity for quantum information has surprising aspects that could be probed experimentally.
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Fidelity of quantum teleportation in correlated quantum channels
Quantum Information Processing, 2020You-neng Guo +3 more
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Artificial channels for confined mass transport at the sub-nanometre scale
Nature Reviews Materials, 2021Jie Shen, Gong-Ping Liu, Yu Han
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