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Published on: March 30, 2017
Two-step condensation of the charged Bose gas
R L Delgado1, P Bargueño, F Sols
1Departamento de Física de Materiales, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
Abstract:
The condensation of the spinless ideal charged Bose gas in the presence of a magnetic field is revisited. The conventional approach is extended to include the macroscopic occupation of excited kinetic states lying in the lowest Landau level, which plays an essential role in the case of large magnetic fields. In that limit, signatures of two diffuse phase transitions (crossovers) appear in the specific heat. In particular, at temperatures lower than the cyclotron frequency, the system behaves as an effectively one-dimensional free boson system, with the specific heat equal to 1/2Nk(B) and a gradual condensation at lower temperatures.
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