Quantum coherence from commensurate driving with laser pulses and decay

Non-equilibrium physics is a particularly fascinating field of current research. Generically, driven systems are gradually heated up so that quantum effects die out. In contrast, we show that a driven central spin model including controlled dissipation in a highly excited state allows us to disti...

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Main Author: Goetz S. Uhrig
Format: Article
Language:English
Published: SciPost 2020-03-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.8.3.040
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spelling doaj-2193950e4910402183c73309282301242021-04-19T11:30:02ZengSciPostSciPost Physics2542-46532020-03-018304010.21468/SciPostPhys.8.3.040Quantum coherence from commensurate driving with laser pulses and decayGoetz S. UhrigNon-equilibrium physics is a particularly fascinating field of current research. Generically, driven systems are gradually heated up so that quantum effects die out. In contrast, we show that a driven central spin model including controlled dissipation in a highly excited state allows us to distill quantum coherent states, indicated by a substantial reduction of entropy. The model is experimentally accessible in quantum dots or molecules with unpaired electrons. The potential of preparing and manipulating coherent states by designed driving potentials is pointed out.https://scipost.org/SciPostPhys.8.3.040
collection DOAJ
language English
format Article
sources DOAJ
author Goetz S. Uhrig
spellingShingle Goetz S. Uhrig
Quantum coherence from commensurate driving with laser pulses and decay
SciPost Physics
author_facet Goetz S. Uhrig
author_sort Goetz S. Uhrig
title Quantum coherence from commensurate driving with laser pulses and decay
title_short Quantum coherence from commensurate driving with laser pulses and decay
title_full Quantum coherence from commensurate driving with laser pulses and decay
title_fullStr Quantum coherence from commensurate driving with laser pulses and decay
title_full_unstemmed Quantum coherence from commensurate driving with laser pulses and decay
title_sort quantum coherence from commensurate driving with laser pulses and decay
publisher SciPost
series SciPost Physics
issn 2542-4653
publishDate 2020-03-01
description Non-equilibrium physics is a particularly fascinating field of current research. Generically, driven systems are gradually heated up so that quantum effects die out. In contrast, we show that a driven central spin model including controlled dissipation in a highly excited state allows us to distill quantum coherent states, indicated by a substantial reduction of entropy. The model is experimentally accessible in quantum dots or molecules with unpaired electrons. The potential of preparing and manipulating coherent states by designed driving potentials is pointed out.
url https://scipost.org/SciPostPhys.8.3.040
work_keys_str_mv AT goetzsuhrig quantumcoherencefromcommensuratedrivingwithlaserpulsesanddecay
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