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Quantum phase transition in an atomic bose gas with a feshbach resonance | | M W J Romans
; R A Duine
; Subir Sachdev
; H T C Stoof
; | | Date: |
9 Jul 2004 | | Journal: | Phys Rev Lett, 93 (2), 020405 | | Abstract: | We show that in an atomic Bose gas near a Feshbach resonance a quantum phase transition occurs between a phase with only a molecular Bose-Einstein condensate and a phase with both an atomic and a molecular Bose-Einstein condensate. We show that the transition is characterized by an Ising order parameter. We also determine the phase diagram of the gas as a function of magnetic field and temperature: the quantum critical point extends into a line of finite temperature Ising transitions. | | Source: | PubMed, pmid15323885 | | Services: | Forum | Review | Favorites | |
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