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Comparison of Quantum Channels by Superchannels [PDF]
IEEE Transactions on Information Theory, 2018 We extend the definition of the conditional min-entropy from bipartite quantum states to bipartite quantum channels. We show that many of the properties of the conditional min-entropy carry over to the extended version, including an operational ...
G. Gour
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Solving Quantum Channel Discrimination Problem With Quantum Networks and Quantum Neural Networks
IEEE Access, 2019 Distinguishing one quantum channel from another becomes a next natural question following the advent of quantum state discrimination. Here, we address the problem of quantum channel discrimination with the separable states and the entangled states input.
Peng-Hui Qiu +2 more
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Noise effects on purity and quantum entanglement in terms of physical implementability
npj Quantum Information, 2023 Quantum decoherence due to imperfect manipulation of quantum devices is a key issue in the noisy intermediate-scale quantum (NISQ) era. Standard analyses in quantum information and quantum computation use error rates to parameterize quantum noise ...
Yuchen Guo, Shuo Yang
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Pathophysiology, 2021 Voltage-gated channels are crucial in action potential initiation and propagation and there are many diseases and disorders related to them. Additionally, the classical mechanics are the main mechanics used to describe the function of the voltage-gated ...
Abdallah Barjas Qaswal +5 more
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Uncertainty principle of quantum processes
Physical Review Research, 2021 Heisenberg's uncertainty principle, which imposes intrinsic restrictions on our ability to predict the outcomes of incompatible quantum measurements to arbitrary precision, demonstrates one of the key differences between classical and quantum mechanics ...
Yunlong Xiao +3 more
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Repeatable quantum memory channels [PDF]
Phys. Rev. A 78, 052114 (2008), 2008 Within the framework of quantum memory channels we introduce the notion of repeatability of quantum channels. In particular, a quantum channel is called repeatable if there exist a memory device implementing the same channel on each individual input. We show that random unitary channels can be implemented in a repeatable fashion, whereas the nonunital ...
arxiv +1 more source
Quantum Optimal Transport with Quantum Channels [PDF]
Annales de l'Institute Henri Poincare. Physique theorique, 2019 We propose a new generalization to quantum states of the Wasserstein distance, which is a fundamental distance between probability distributions given by the minimization of a transport cost.
Giacomo De Palma, Dario Trevisan
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Communication over Quantum Channels with Parameter Estimation
International Symposium on Information Theory, 2020 Communication over a random-parameter quantum channel when the decoder reconstructs the parameter sequence is considered in different scenarios. Regularized formulas are derived for the capacity-distortion regions with strictly-causal, causal, or non ...
Uzi Pereg
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Witnessing incompatibility of quantum channels [PDF]
Journal of Mathematics and Physics, 2019 We introduce the notion of incompatibility witness for quantum channels, defined as an affine functional that is non-negative on all pairs of compatible channels and strictly negative on some incompatible pair.
C. Carmeli +3 more
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Gaussian bosonic synergy: quantum communication via realistic channels of zero quantum capacity [PDF]
, 2011 As with classical information, error-correcting codes enable reliable transmission of quantum information through noisy or lossy channels. In contrast to the classical theory, imperfect quantum channels exhibit a strong kind of synergy: there exist pairs
A Peres +29 more
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