Quantum work for sudden quenches in Gaussian random Hamiltonians
In the context of nonequilibrium quantum thermodynamics, variables like work behave stochastically. A particular definition of the work probability density function (pdf) for coherent quantum processes allows the verification of the quantum version of the celebrated fluctuation theorems, due to Jarz...
Guardado en:
| Publicado: |
2018
|
|---|---|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24700045_v98_n1_p_Arrais http://hdl.handle.net/20.500.12110/paper_24700045_v98_n1_p_Arrais |
| Aporte de: |
| id |
paper:paper_24700045_v98_n1_p_Arrais |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_24700045_v98_n1_p_Arrais2025-07-30T19:12:24Z Quantum work for sudden quenches in Gaussian random Hamiltonians Density functional theory Probability density function Quantum theory Random variables Thermodynamics Analytic expressions Characteristic functions Fluctuation theorems Hamiltonians matrices Initial equilibriums Probability density function (pdf) Quantum thermodynamics Random matrix theory Hamiltonians In the context of nonequilibrium quantum thermodynamics, variables like work behave stochastically. A particular definition of the work probability density function (pdf) for coherent quantum processes allows the verification of the quantum version of the celebrated fluctuation theorems, due to Jarzynski and Crooks, that apply when the system is driven away from an initial equilibrium thermal state. Such a particular pdf depends basically on the details of the initial and final Hamiltonians, on the temperature of the initial thermal state, and on how some external parameter is changed during the coherent process. Using random matrix theory we derive a simple analytic expression that describes the general behavior of the work characteristic function G(u), associated with this particular work pdf for sudden quenches, valid for all the traditional Gaussian ensembles of Hamiltonians matrices. This formula well describes the general behavior of G(u) calculated from single draws of the initial and final Hamiltonians in all ranges of temperatures. © 2018 American Physical Society. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24700045_v98_n1_p_Arrais http://hdl.handle.net/20.500.12110/paper_24700045_v98_n1_p_Arrais |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Density functional theory Probability density function Quantum theory Random variables Thermodynamics Analytic expressions Characteristic functions Fluctuation theorems Hamiltonians matrices Initial equilibriums Probability density function (pdf) Quantum thermodynamics Random matrix theory Hamiltonians |
| spellingShingle |
Density functional theory Probability density function Quantum theory Random variables Thermodynamics Analytic expressions Characteristic functions Fluctuation theorems Hamiltonians matrices Initial equilibriums Probability density function (pdf) Quantum thermodynamics Random matrix theory Hamiltonians Quantum work for sudden quenches in Gaussian random Hamiltonians |
| topic_facet |
Density functional theory Probability density function Quantum theory Random variables Thermodynamics Analytic expressions Characteristic functions Fluctuation theorems Hamiltonians matrices Initial equilibriums Probability density function (pdf) Quantum thermodynamics Random matrix theory Hamiltonians |
| description |
In the context of nonequilibrium quantum thermodynamics, variables like work behave stochastically. A particular definition of the work probability density function (pdf) for coherent quantum processes allows the verification of the quantum version of the celebrated fluctuation theorems, due to Jarzynski and Crooks, that apply when the system is driven away from an initial equilibrium thermal state. Such a particular pdf depends basically on the details of the initial and final Hamiltonians, on the temperature of the initial thermal state, and on how some external parameter is changed during the coherent process. Using random matrix theory we derive a simple analytic expression that describes the general behavior of the work characteristic function G(u), associated with this particular work pdf for sudden quenches, valid for all the traditional Gaussian ensembles of Hamiltonians matrices. This formula well describes the general behavior of G(u) calculated from single draws of the initial and final Hamiltonians in all ranges of temperatures. © 2018 American Physical Society. |
| title |
Quantum work for sudden quenches in Gaussian random Hamiltonians |
| title_short |
Quantum work for sudden quenches in Gaussian random Hamiltonians |
| title_full |
Quantum work for sudden quenches in Gaussian random Hamiltonians |
| title_fullStr |
Quantum work for sudden quenches in Gaussian random Hamiltonians |
| title_full_unstemmed |
Quantum work for sudden quenches in Gaussian random Hamiltonians |
| title_sort |
quantum work for sudden quenches in gaussian random hamiltonians |
| publishDate |
2018 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24700045_v98_n1_p_Arrais http://hdl.handle.net/20.500.12110/paper_24700045_v98_n1_p_Arrais |
| _version_ |
1840328598599237632 |