Roads to objectivity: Quantum Darwinism, Spectrum Broadcast Structures, and Strong quantum Darwinism – a review

J. K. Korbicz

doi:10.22331/q-2021-11-08-571

Roads to objectivity: Quantum Darwinism, Spectrum Broadcast Structures, and Strong quantum Darwinism – a review

J. K. Korbicz

Center for Theoretical Physics, Polish Academy of Sciences, 02-668 Warsaw, Poland

Published:	2021-11-08, volume 5, page 571
Eprint:	arXiv:2007.04276v2
Doi:	https://doi.org/10.22331/q-2021-11-08-571
Citation:	Quantum 5, 571 (2021).

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Abstract

The problem of objectivity, i.e. how to explain on quantum grounds the objective character of the macroscopic world, is one of the aspects of the celebrated quantum-to-classical transition. Initiated by W. H. Zurek and collaborators, this problem gained some attention recently with several approaches being developed. The aim of this work is to compare three of them: quantum Darwinism, Spectrum Broadcast Structures, and strong quantum Darwinism. The paper is concentrated on foundations, providing a synthetic analysis of how the three approaches realize the idea of objectivity and how they are related to each other. As a byproduct of this analysis, a proof of a generalized Spectrum Broadcast Structure theorem is presented. Recent quantum Darwinism experiments are also briefly discussed.

► BibTeX data

@article{Korbicz2021roadstoobjectivity,
  doi = {10.22331/q-2021-11-08-571},
  url = {https://doi.org/10.22331/q-2021-11-08-571},
  title = {Roads to objectivity: {Q}uantum {D}arwinism, {S}pectrum {B}roadcast {S}tructures, and {S}trong quantum {D}arwinism – a review},
  author = {Korbicz, J. K.},
  journal = {{Quantum}},
  issn = {2521-327X},
  publisher = {{Verein zur F{\"{o}}rderung des Open Access Publizierens in den Quantenwissenschaften}},
  volume = {5},
  pages = {571},
  month = nov,
  year = {2021}
}

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