Assessing the role of initial correlations in the entropy production rate for nonequilibrium harmonic dynamics
Entropy production provides a general way to state the second law of thermodynamics for nonequilibrium scenarios. In open quantum system dynamics, it also serves as a useful quantifier of the degree of irreversibility. In this work we shed light on the relation between correlations, initial preparat...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2020-10-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.043006 |
| _version_ | 1797211249177526272 |
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| author | Giorgio Zicari Matteo Brunelli Mauro Paternostro |
| author_facet | Giorgio Zicari Matteo Brunelli Mauro Paternostro |
| author_sort | Giorgio Zicari |
| collection | DOAJ |
| description | Entropy production provides a general way to state the second law of thermodynamics for nonequilibrium scenarios. In open quantum system dynamics, it also serves as a useful quantifier of the degree of irreversibility. In this work we shed light on the relation between correlations, initial preparation of the system, and non-Markovianity by studying a system of two harmonic oscillators independently interacting with their local baths. Their dynamics, described by a time-local master equation, is solved to show, both numerically and analytically, that the global purity of the initial state of the system influences the behavior of the entropy production rate and that the latter depends algebraically on the entanglement that characterizes the initial state. |
| first_indexed | 2024-04-24T10:23:29Z |
| format | Article |
| id | doaj.art-1af20f58598c4e0d9928492ff4afe634 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:23:29Z |
| publishDate | 2020-10-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-1af20f58598c4e0d9928492ff4afe6342024-04-12T17:01:41ZengAmerican Physical SocietyPhysical Review Research2643-15642020-10-012404300610.1103/PhysRevResearch.2.043006Assessing the role of initial correlations in the entropy production rate for nonequilibrium harmonic dynamicsGiorgio ZicariMatteo BrunelliMauro PaternostroEntropy production provides a general way to state the second law of thermodynamics for nonequilibrium scenarios. In open quantum system dynamics, it also serves as a useful quantifier of the degree of irreversibility. In this work we shed light on the relation between correlations, initial preparation of the system, and non-Markovianity by studying a system of two harmonic oscillators independently interacting with their local baths. Their dynamics, described by a time-local master equation, is solved to show, both numerically and analytically, that the global purity of the initial state of the system influences the behavior of the entropy production rate and that the latter depends algebraically on the entanglement that characterizes the initial state.http://doi.org/10.1103/PhysRevResearch.2.043006 |
| spellingShingle | Giorgio Zicari Matteo Brunelli Mauro Paternostro Assessing the role of initial correlations in the entropy production rate for nonequilibrium harmonic dynamics Physical Review Research |
| title | Assessing the role of initial correlations in the entropy production rate for nonequilibrium harmonic dynamics |
| title_full | Assessing the role of initial correlations in the entropy production rate for nonequilibrium harmonic dynamics |
| title_fullStr | Assessing the role of initial correlations in the entropy production rate for nonequilibrium harmonic dynamics |
| title_full_unstemmed | Assessing the role of initial correlations in the entropy production rate for nonequilibrium harmonic dynamics |
| title_short | Assessing the role of initial correlations in the entropy production rate for nonequilibrium harmonic dynamics |
| title_sort | assessing the role of initial correlations in the entropy production rate for nonequilibrium harmonic dynamics |
| url | http://doi.org/10.1103/PhysRevResearch.2.043006 |
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