AffiliationUniv Arizona, Dept Phys
Univ Arizona, Coll Opt Sci
MetadataShow full item record
PublisherAMER PHYSICAL SOC
CitationOne qubit and one photon: The simplest polaritonic heat engine 2016, 94 (6) Physical Review A
JournalPhysical Review A
Rights©2016 American Physical Society
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractHybrid quantum systems can often be described in terms of polaritons. These are quasiparticles formed of superpositions of their constituents, with relative weights depending on some control parameter in their interaction. In many cases, these constituents are coupled to reservoirs at different temperatures. This suggests a general approach to the realization of polaritonic heat engines where a thermodynamic cycle is realized by tuning this control parameter. Here we discuss what is arguably the simplest such engine, a single qubit coupled to a single photon. We show that this system can extract work from feeble thermal microwave fields. We also propose a quantum measurement scheme of the work and evaluate its backaction on the operation of the engine.
VersionFinal published version
SponsorsNational Key Research and Development Program of China [2016YFA0302000]; NSFC [11574086, 91436211, 11654005, 11234003]; Shanghai Rising-Star Program [16QA1401600]; U.S. Army Research Office