Searching for Majorana Fermions in 2D Spin-Orbit Coupled Fermi Superfluids at Finite Temperature

dc.contributor.authorGong, Mingen_US
dc.contributor.authorChen, G.en_US
dc.contributor.authorJia, S.en_US
dc.contributor.authorZhang, Chuanweien_US
dc.contributor.utdAuthorZhang, Chuanweien_US
dc.date.accessioned2014-02-27T21:33:02Z
dc.date.available2014-02-27T21:33:02Z
dc.date.created2012-09-05en_US
dc.date.issued2012-09-05en_US
dc.description.abstractRecent experimental breakthroughs in realizing spin-orbit (SO) coupling for cold atoms have spurred considerable interest in the physics of two-dimensional SO coupled Fermi superfluids, especially topological Majorana fermions (MFs) which were predicted to exist at zero temperature. However, it is well known that long-range superfluid order is destroyed in two dimensions by phase fluctuations at finite temperature, and the relevant physics is the BKTs transition. In this Letter, we examine finite temperature effects on SO coupled Fermi gases and show that finite temperature is indeed necessary for the observation of MFs. Majorana fermions are topologically protected by a quasiparticle energy gap which is found to be much larger than the temperature. The restrictions to the parameter region for the observation of MFs have been obtained. © 2012 American Physical Society.en_US
dc.identifier.bibliographicCitationGong, M., G. Chen, S. Jia, and C. Zhang. 2012. "Searching for Majorana fermions in 2D spin-orbit coupled Fermi superfluids at finite temperature." Physical Review Letters 109(10): 105302-1 to 105302-6.en_US
dc.identifier.issn0031-9007en_US
dc.identifier.issue10en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3111
dc.identifier.volume109en_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevLett.109.105302
dc.rights© 2012 American Physical Societyen_US
dc.sourcePhysical Review Letters
dc.subjectOriganumen_US
dc.subjectElectron gasen_US
dc.subjectFermionsen_US
dc.titleSearching for Majorana Fermions in 2D Spin-Orbit Coupled Fermi Superfluids at Finite Temperatureen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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