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Open Quantum Systems Decoherence

From polarization multipoles to higher-order coherences

arXiv
Authors: Aaron Z. Goldberg, Andrei B. Klimov, Hubert de Guise, Gerd Leuchs, Girish S. Agarwal, Luis L. Sánchez-Soto

Year

2021

Paper ID

61676

Status

Preprint

Abstract Read

~2 min

Abstract Words

89

Citations

N/A

Abstract

We demonstrate that the multipoles associated with the density matrix are truly observable quantities that can be unambiguously determined from intensity moments. Given their correct transformation properties, these multipoles are the natural variables to deal with a number of problems in the quantum domain. In the case of polarization, the moments are measured after the light has passed through two quarter-wave plates, one half-wave plate, and a polarizing beam splitter for specific values of the angles of the waveplates. For more general two-mode problems, equivalent measurements can be performed.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2021 reference point for readers tracking recent quantum research.
  • We demonstrate that the multipoles associated with the density matrix are truly observable quantities that can be unambiguously determined from intensity moments.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2109.04474 [2] arXiv https://arxiv.org/abs/2109.04474 [3] Publisher https://arxiv.org/abs/2109.04474

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