Dichotomy in the effect of chaos on ergotropy

The maximum unitarily extractable work from a quantum system -- ergotropy -- is a useful and emerging idea in quantum thermodynamics. In this work, ergotropy is studied in quantum chaotic systems to illustrate the effects arising from chaotic dynamics. In an ancilla-assisted scenario, chaos enhances...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: PG, Sreeram, Kannan, J. Bharathi, Tekur, S. Harshini, Santhanam, M. S
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator PG, Sreeram
Kannan, J. Bharathi
Tekur, S. Harshini
Santhanam, M. S
description The maximum unitarily extractable work from a quantum system -- ergotropy -- is a useful and emerging idea in quantum thermodynamics. In this work, ergotropy is studied in quantum chaotic systems to illustrate the effects arising from chaotic dynamics. In an ancilla-assisted scenario, chaos enhances ergotropy when the state is known, a consequence of large entanglement production in the chaotic regime. In contrast, when the state is unknown, chaos impedes work extraction. This downside arises from chaos suppressing information gain about the system from coarse-grained measurements. When both entanglement and coarse-grained measurements are present, there is competition between the two, and ergotropy reaches maximum at an optimal value of the chaos parameter, followed by a decrease. The fall in ergotropy is due to chaos impeding measurements in the chaotic regime. These results are illustrated using two quantum chaotic models; the quantum kicked top and the kicked Ising spin chain.
doi_str_mv 10.48550/arxiv.2409.16587
format Article
fullrecord <record><control><sourceid>arxiv_GOX</sourceid><recordid>TN_cdi_arxiv_primary_2409_16587</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2409_16587</sourcerecordid><originalsourceid>FETCH-arxiv_primary_2409_165873</originalsourceid><addsrcrecordid>eNpjYJA0NNAzsTA1NdBPLKrILNMzMjGw1DM0M7Uw52TQdclMzsgvyc-tVMjMUyjJSFVITUtLTS5RyE9TSM5IzC9WyM9TSC1Kzy8pyi-o5GFgTUvMKU7lhdLcDPJuriHOHrpgg-MLijJzE4sq40EWxIMtMCasAgCT7i-f</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Dichotomy in the effect of chaos on ergotropy</title><source>arXiv.org</source><creator>PG, Sreeram ; Kannan, J. Bharathi ; Tekur, S. Harshini ; Santhanam, M. S</creator><creatorcontrib>PG, Sreeram ; Kannan, J. Bharathi ; Tekur, S. Harshini ; Santhanam, M. S</creatorcontrib><description>The maximum unitarily extractable work from a quantum system -- ergotropy -- is a useful and emerging idea in quantum thermodynamics. In this work, ergotropy is studied in quantum chaotic systems to illustrate the effects arising from chaotic dynamics. In an ancilla-assisted scenario, chaos enhances ergotropy when the state is known, a consequence of large entanglement production in the chaotic regime. In contrast, when the state is unknown, chaos impedes work extraction. This downside arises from chaos suppressing information gain about the system from coarse-grained measurements. When both entanglement and coarse-grained measurements are present, there is competition between the two, and ergotropy reaches maximum at an optimal value of the chaos parameter, followed by a decrease. The fall in ergotropy is due to chaos impeding measurements in the chaotic regime. These results are illustrated using two quantum chaotic models; the quantum kicked top and the kicked Ising spin chain.</description><identifier>DOI: 10.48550/arxiv.2409.16587</identifier><language>eng</language><subject>Physics - Quantum Physics</subject><creationdate>2024-09</creationdate><rights>http://arxiv.org/licenses/nonexclusive-distrib/1.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/2409.16587$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.2409.16587$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>PG, Sreeram</creatorcontrib><creatorcontrib>Kannan, J. Bharathi</creatorcontrib><creatorcontrib>Tekur, S. Harshini</creatorcontrib><creatorcontrib>Santhanam, M. S</creatorcontrib><title>Dichotomy in the effect of chaos on ergotropy</title><description>The maximum unitarily extractable work from a quantum system -- ergotropy -- is a useful and emerging idea in quantum thermodynamics. In this work, ergotropy is studied in quantum chaotic systems to illustrate the effects arising from chaotic dynamics. In an ancilla-assisted scenario, chaos enhances ergotropy when the state is known, a consequence of large entanglement production in the chaotic regime. In contrast, when the state is unknown, chaos impedes work extraction. This downside arises from chaos suppressing information gain about the system from coarse-grained measurements. When both entanglement and coarse-grained measurements are present, there is competition between the two, and ergotropy reaches maximum at an optimal value of the chaos parameter, followed by a decrease. The fall in ergotropy is due to chaos impeding measurements in the chaotic regime. These results are illustrated using two quantum chaotic models; the quantum kicked top and the kicked Ising spin chain.</description><subject>Physics - Quantum Physics</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNpjYJA0NNAzsTA1NdBPLKrILNMzMjGw1DM0M7Uw52TQdclMzsgvyc-tVMjMUyjJSFVITUtLTS5RyE9TSM5IzC9WyM9TSC1Kzy8pyi-o5GFgTUvMKU7lhdLcDPJuriHOHrpgg-MLijJzE4sq40EWxIMtMCasAgCT7i-f</recordid><startdate>20240924</startdate><enddate>20240924</enddate><creator>PG, Sreeram</creator><creator>Kannan, J. Bharathi</creator><creator>Tekur, S. Harshini</creator><creator>Santhanam, M. S</creator><scope>GOX</scope></search><sort><creationdate>20240924</creationdate><title>Dichotomy in the effect of chaos on ergotropy</title><author>PG, Sreeram ; Kannan, J. Bharathi ; Tekur, S. Harshini ; Santhanam, M. S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_2409_165873</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Physics - Quantum Physics</topic><toplevel>online_resources</toplevel><creatorcontrib>PG, Sreeram</creatorcontrib><creatorcontrib>Kannan, J. Bharathi</creatorcontrib><creatorcontrib>Tekur, S. Harshini</creatorcontrib><creatorcontrib>Santhanam, M. S</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PG, Sreeram</au><au>Kannan, J. Bharathi</au><au>Tekur, S. Harshini</au><au>Santhanam, M. S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dichotomy in the effect of chaos on ergotropy</atitle><date>2024-09-24</date><risdate>2024</risdate><abstract>The maximum unitarily extractable work from a quantum system -- ergotropy -- is a useful and emerging idea in quantum thermodynamics. In this work, ergotropy is studied in quantum chaotic systems to illustrate the effects arising from chaotic dynamics. In an ancilla-assisted scenario, chaos enhances ergotropy when the state is known, a consequence of large entanglement production in the chaotic regime. In contrast, when the state is unknown, chaos impedes work extraction. This downside arises from chaos suppressing information gain about the system from coarse-grained measurements. When both entanglement and coarse-grained measurements are present, there is competition between the two, and ergotropy reaches maximum at an optimal value of the chaos parameter, followed by a decrease. The fall in ergotropy is due to chaos impeding measurements in the chaotic regime. These results are illustrated using two quantum chaotic models; the quantum kicked top and the kicked Ising spin chain.</abstract><doi>10.48550/arxiv.2409.16587</doi><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier DOI: 10.48550/arxiv.2409.16587
ispartof
issn
language eng
recordid cdi_arxiv_primary_2409_16587
source arXiv.org
subjects Physics - Quantum Physics
title Dichotomy in the effect of chaos on ergotropy
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-11T20%3A51%3A39IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-arxiv_GOX&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Dichotomy%20in%20the%20effect%20of%20chaos%20on%20ergotropy&rft.au=PG,%20Sreeram&rft.date=2024-09-24&rft_id=info:doi/10.48550/arxiv.2409.16587&rft_dat=%3Carxiv_GOX%3E2409_16587%3C/arxiv_GOX%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true