dc.contributor.author | Eastham, Paul | |
dc.contributor.author | Mitchison, Mark T. | |
dc.contributor.author | Popovic, Maria | |
dc.contributor.author | Goold, John | |
dc.date.accessioned | 2021-06-11T09:35:44Z | |
dc.date.available | 2021-06-11T09:35:44Z | |
dc.date.issued | 2021 | |
dc.date.submitted | 2021 | en |
dc.identifier.citation | Popovic, M., Mitchison, M.T., Strathearn, A., Lovett, B.W., Goold, J., Eastham, P.R., Quantum heat statistics with time-evolving matrix product operators, PRX Quantum, 2021, 2, 020338 | en |
dc.identifier.other | Y | |
dc.description | PUBLISHED | en |
dc.description.abstract | We present a numerically exact method to compute the full counting statistics of heat transfer in non-Markovian open quantum systems, which is based on the time-evolving matrix product operator algorithm. This approach is applied to the paradigmatic spin-boson model in order to calculate the mean and fluctuations of the heat transferred to the environment during thermal equilibration. We show that system-reservoir correlations make a significant contribution to the heat statistics at low temperature and present a variational theory that quantitatively explains our numerical results. We also demonstrate a fluctuation-dissipation relation connecting the mean and variance of the heat distribution at high temperature. Our results reveal that system-bath interactions make a significant contribution to heat transfer even when the dynamics of the open system is effectively Markovian. The method presented here provides a flexible and general tool to predict the fluctuations of heat transfer in open quantum systems in nonperturbative regimes. | en |
dc.format.extent | 020338 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | PRX Quantum; | |
dc.relation.ispartofseries | 2; | |
dc.rights | Y | en |
dc.subject | Fluctuation theorems | en |
dc.subject | Spin-boson model | en |
dc.subject | Non-Markovian processes | en |
dc.subject | Full counting statistics | en |
dc.subject | Quantum thermodynamics | en |
dc.subject | Heat transfer | en |
dc.subject | Nonequilibrium & irreversible thermodynamics | en |
dc.title | Quantum heat statistics with time-evolving matrix product operators | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/easthamp | |
dc.identifier.rssinternalid | 231195 | |
dc.identifier.doi | https://doi.org/10.1103/PRXQuantum.2.020338 | |
dc.rights.ecaccessrights | openAccess | |
dc.subject.TCDTheme | Nanoscience & Materials | en |
dc.subject.TCDTag | DECOHERENCE | en |
dc.subject.TCDTag | NUMERICAL METHODS | en |
dc.subject.TCDTag | OPEN QUANTUM SYSTEMS | en |
dc.subject.TCDTag | Theoretical Physics | en |
dc.subject.TCDTag | Thermodynamics | en |
dc.identifier.orcid_id | 0000-0002-7054-1457 | |
dc.status.accessible | N | en |
dc.identifier.uri | http://hdl.handle.net/2262/96563 | |