Roads to objectivity: Quantum Darwinism, Spectrum Broadcast Structures, and Strong quantum Darwinism -- a review
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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.Keywords
All Related Versions
- Version 1, 2020-07-08, ArXiv
- Version 2, 2021-10-28, ArXiv
- Published version: Quantum, 5, 571.
This publication has 48 references indexed in Scilit:
- Appearance of objectivity for NV centers interacting with dynamically polarized nuclear environmentNew Journal of Physics, 2021
- Emergence of classical objectivity of quantum Darwinism in a photonic quantum simulatorScience Bulletin, 2019
- Information transfer during the universal gravitational decoherenceGeneral Relativity and Gravitation, 2017
- Amplification, Decoherence and the Acquisition of Information by Spin EnvironmentsScientific Reports, 2016
- Generic emergence of classical features in quantum DarwinismNature Communications, 2015
- Quantum discord is Bohr’s notion of non-mechanical disturbance introduced to counter the Einstein–Podolsky–Rosen argumentAnnals of Physics, 2013
- Complementarity of quantum discord and classically accessible informationScientific Reports, 2013
- Quantum DarwinismNature Physics, 2009
- Structure of States Which Satisfy Strong Subadditivity of Quantum Entropy with EqualityCommunications in Mathematical Physics, 2004
- Proof of the strong subadditivity of quantum-mechanical entropyJournal of Mathematical Physics, 1973