Publication:
Mixing thermal coherent states for precision and range enhancement in quantum thermometry

dc.contributor.coauthorNaseem, M. Tahir
dc.contributor.departmentDepartment of Physics
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.kuauthorUllah, Asghar
dc.contributor.kuauthorMüstecaplıoğlu, Özgür Esat
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.date.accessioned2025-03-06T21:00:22Z
dc.date.issued2025
dc.description.abstractThe unavoidable interaction between thermal environments and quantum systems typically leads to the degradation of quantum coherence, which can be fought against by reservoir engineering. We propose the realization of a special mixture of thermal coherent states by coupling a thermal bath with a two-level system (TLS) that is longitudinally coupled to a resonator. We find that the state of the resonator is a special mixture of two oppositely displaced thermal coherent states, whereas the TLS remains thermal. This observation is verified by evaluating the second-order correlation coefficient for the resonator state. Moreover, we reveal the potential benefits of employing the mixture of thermal coherent states of the resonator in quantum thermometry. In this context, the resonator functions as a probe to measure the unknown temperature of a bath mediated by a TLS, strategically bridging the connection between the two. Our results show that the use of an ancillary-assisted probe may enhance the precision and broaden the applicable temperature range.
dc.description.indexedbyWOS
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuTÜBİTAK
dc.description.sponsorshipThis work is supported by the Scientific and Technological Research Council of Turkey (TÜBİTAK) under Grant Number 122F371.
dc.identifier.doi10.1088/2058-9565/ad994a
dc.identifier.grantnoScientific and Technological Research Council of Turkey (TÜBİTAK) [122F371]
dc.identifier.issn2058-9565
dc.identifier.issue1
dc.identifier.quartileQ1
dc.identifier.urihttps://doi.org/10.1088/2058-9565/ad994a
dc.identifier.urihttps://hdl.handle.net/20.500.14288/27865
dc.identifier.volume10
dc.identifier.wos1374013700001
dc.keywordsQuantum thermodynamics
dc.keywordsQuantum thermometry
dc.keywordsQuantum technologies
dc.language.isoeng
dc.publisherIOP Publishing Ltd
dc.relation.ispartofQuantum Science and Technology
dc.subjectQuantum science and technology
dc.subjectPhysics, multidisciplinary
dc.titleMixing thermal coherent states for precision and range enhancement in quantum thermometry
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorUllah, Asghar
local.contributor.kuauthorMüstecaplıoğlu, Özgür Esat
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Physics
local.publication.orgunit2Graduate School of Sciences and Engineering
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