Bose–Einstein condensation of paired photon-dressed electrons in graphene

In this paper we point out the possible observation of the Bose–Einstein condensation for a gas of paired photon-dressed electrons in a graphene monolayer. At T=0 the condensation presents a strong crossover from the BCS state to the Bose–Einstein condensate. In an explicit way we calculated the fra...

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Bibliographic Details
Published in:Physica. E, Low-dimensional systems & nanostructures Low-dimensional systems & nanostructures, 2014-09, Vol.63, p.134-138
Main Author: Vega Monroy, R.
Format: Article
Language:English
Subjects:
BCS state
Bose–Einstein Condensation
Condensate fraction
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Graphene monolayer
Materials science
Off-diagonal long-range order
Photon-dressed electron
Physics
Specific materials
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Summary:In this paper we point out the possible observation of the Bose–Einstein condensation for a gas of paired photon-dressed electrons in a graphene monolayer. At T=0 the condensation presents a strong crossover from the BCS state to the Bose–Einstein condensate. In an explicit way we calculated the fraction of condensed photon-dressed electron pairs as a function of the photon–electron bound energy and the temperature. The range of coherence of condensed quasiparticles is circumscribed to local bound states, where the Off-diagonal long-range order is guaranteed via the BCS state. •We point out the possibility of BEC of paired photon-dressed electrons in graphene.•Analytically we calculate the fraction of condensed photon-dressed electron pairs.•The condensation presents a strong dependence on the electron–photon bound energy.•The pairing grows with the field, presenting a crossover from BCS state to BEC.
ISSN:1386-9477
1873-1759
DOI:10.1016/j.physe.2014.05.026