Downconversion of quantum fluctuations of photonic heat current in a circuit

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorKarimi, Bayanen_US
dc.contributor.authorPekola, Jukka P.en_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorCentre of Excellence in Quantum Technology, QTFen
dc.contributor.groupauthorQuantum Phenomena and Devicesen
dc.date.accessioned2021-11-10T07:46:28Z
dc.date.available2021-11-10T07:46:28Z
dc.date.issued2021-10-15en_US
dc.description| openaire: EC/H2020/742559/EU//SQH | openaire: EC/H2020/766025/EU//QuESTech
dc.description.abstractWe discuss the nonzero frequency noise of heat current with the explicit example of energy carried by thermal photons in a circuit. Instead of the standard circuit modeling that gives a convenient way of predicting timeaveraged heat current, we describe a setup composed of two resistors forming the heat baths by collections of bosonic oscillators. In terms of average heat transport this model leads to identical results with the conventional one, but besides this, it yields a convenient way of dealing with noise as well. The nonzero-frequency heat current noise does not vanish in equilibrium even at zero temperature, a result that is known for, e.g., electron tunneling. We present a modulation method that can convert the difficult-to-measure high-frequency quantum noise down to zero frequency.en
dc.description.versionPeer revieweden
dc.format.extent5
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationKarimi, B & Pekola, J P 2021, ' Downconversion of quantum fluctuations of photonic heat current in a circuit ', Physical Review B, vol. 104, no. 16, A72 . https://doi.org/10.1103/PhysRevB.104.165418en
dc.identifier.doi10.1103/PhysRevB.104.165418en_US
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.otherPURE UUID: 0b2c4f89-384f-47a4-8b08-da44cfad843aen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/0b2c4f89-384f-47a4-8b08-da44cfad843aen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85118509175&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/74677344/Downconversion_of_quantum_fluctuations_of_photonic_heat_current_in_a_circuit.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/110874
dc.identifier.urnURN:NBN:fi:aalto-2021111010045
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/766025/EU//QuESTechen_US
dc.relation.ispartofseriesPhysical Review Ben
dc.relation.ispartofseriesVolume 104, issue 16en
dc.rightsopenAccessen
dc.subject.keywordTHERMAL AGITATIONen_US
dc.subject.keywordCONDUCTIONen_US
dc.titleDownconversion of quantum fluctuations of photonic heat current in a circuiten
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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