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Open Quantum Systems Decoherence

When quantum channel preserves product states

arXiv
Authors: Yu Guo, Zhaofang Bai, Shuanping Du, Xiulan Li

Year

2014

Paper ID

47393

Status

Preprint

Abstract Read

~2 min

Abstract Words

75

Citations

N/A

Abstract

Product states are always considered as the states that don't contain quantum correlation. We discuss here when a quantum channel sends the product states to themselves. The exact forms of such channels are proposed. It is shown that such a quantum channel is a local quantum channel, a composition of a local quantum channel and a flip operation, or such that one of the local states is fixed. Both finite- and infinite-dimensional systems are considered.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2014 reference point for readers tracking recent quantum research.
  • Product states are always considered as the states that don't contain quantum correlation.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1409.5994 [2] arXiv https://arxiv.org/abs/1409.5994 [3] Publisher https://arxiv.org/abs/1409.5994

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