dc.contributor.author | Eisler, Viktor | |
dc.contributor.author | Zimborás, Zoltán | |
dc.date.accessioned | 2015-10-07T13:52:08Z | |
dc.date.available | 2015-10-07T13:52:08Z | |
dc.date.issued | 2014-12-08 | |
dc.identifier.citation | New Journal of Physics 16 : (2014) // Article ID 123020 | es |
dc.identifier.issn | 1367-2630 | |
dc.identifier.uri | http://hdl.handle.net/10810/15783 | |
dc.description.abstract | We study the entanglement in a chain of harmonic oscillators driven out of equilibrium by preparing the two sides of the system at different temperatures, and subsequently joining them together. The steady state is constructed explicitly and the logarithmic negativity is calculated between two adjacent segments of the chain. We find that, for low temperatures, the steady-state entanglement is a sum of contributions pertaining to left-and right-moving excitations emitted from the two reservoirs. In turn, the steady-state entanglement is a simple average of the Gibbs-state values and thus its scaling can be obtained from conformal field theory. A similar averaging behaviour is observed during the entire time evolution. As a particular case, we also discuss a local quench where both sides of the chain are initialized in their respective ground states. | es |
dc.description.sponsorship | The work of VE was realized in the framework of TAMOP 4.2.4. A/1-11-1-2012-0001 'National Excellence Program'. The project was supported by the European Union and co-financed by the European Social Fund. ZZ acknowledges funding by the British Engineering and Physical Sciences Research Council (EPSRC), the Basque Government (Project No. IT4720-10), and by the European Union through the ERC Starting Grant GEDENTQOPT and the CHIST-ERA QUASAR project | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/258647 | es |
dc.rights | info:eu-repo/semantics/openAccess | es |
dc.subject | entanglement in many-body systems | es |
dc.subject | quantum statistical mechanics | es |
dc.subject | non-equilibrum statistical physics | es |
dc.subject | conformal field theory | es |
dc.subject | systems | es |
dc.subject | states | es |
dc.subject | separability | es |
dc.title | Entanglement negativity in the harmonic chain out of equilibrium | es |
dc.type | info:eu-repo/semantics/article | es |
dc.rights.holder | IOP Publishing Ltd and Deutsche Physikalische Gesellschaf | es |
dc.relation.publisherversion | http://iopscience.iop.org/article/10.1088/1367-2630/16/12/123020/meta | es |
dc.identifier.doi | 10.1088/1367-2630/16/12/123020 | |
dc.departamentoes | Física teórica e historia de la ciencia | es_ES |
dc.departamentoeu | Fisika teorikoa eta zientziaren historia | es_ES |
dc.subject.categoria | PHYSICS AND ASTRONOMY | |