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Quantum Simulation Entanglement Theory Quantum Correlations Open Quantum Systems Decoherence

A glimpse of objectivity in bipartite systems for non-entangling pure dephasing evolutions

arXiv

Authors: Katarzyna Roszak, Jarosław K. Korbicz

Year

2019

Paper ID

14832

Status

Preprint

Abstract Read

~2 min

Abstract Words

123

Citations

N/A

Abstract

We study separable system-environment evolutions of pure dephasing type in the context of objectivity and find that it can lead to the natural emergence of Spectrum Broadcast Structure (SBS) states at discrete instances of time. Contrary to the standard way of obtaining SBS states which requires entanglement with the observed environment, reaching such states here does not require decoherence (no unobserved environements are necessary). Yet the biggest difference is the basis with respect to which the SBS states are formed. Here it is not the pointer basis of the system given by the interaction with the environment, but an equal superposition basis of said pointer states. The price to pay is the momentary character of the formed SBS structures, hence the term "glimpse".

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We study separable system-environment evolutions of pure dephasing type in the context of objectivity and find that it can lead to the natural emergence of Spectrum Broadcast...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1911.05558 [2] arXiv https://arxiv.org/abs/1911.05558 [3] Publisher https://arxiv.org/abs/1911.05558

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