Phases of a polar spin-1 Bose gas in a magnetic field |
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| Authors: | Krisztiá n Kis-Szabó ,Pé ter Szé pfalusy,Gergely Szirmai |
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| Affiliation: | 1. Department of Physics of Complex Systems, Roland Eötvös University, Pázmány Péter Sétány 1/A, Budapest H-1117, Hungary;2. Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences, Budapest, P.O.Box 49 H-1525, Hungary;3. Research Group for Statistical Physics of the Hungarian Academy of Sciences, Pázmány Péter Sétány 1/A, Budapest H-1117, Hungary |
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| Abstract: | The two Bose–Einstein condensed phases of a polar spin-1 gas at nonzero magnetizations and temperatures are investigated. The Hugenholtz–Pines theorem is generalized to this system. Crossover to a quantum phase transition is also studied. Results are discussed in a mean field approximation. |
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| Keywords: | 03.75.Mn 03.75.Hh 67.40.Db |
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