Vortex phase diagram in rotating two-component bose-einstein condensates

Physical Review Letters

Volumn 91, Issue 15, 2003, Pages

  Kasamatsu, Kenichi ^a   Tsubota, Makoto ^a   Ueda, Masahito ^b  

^a Osaka Prefecture University   (Japan)

^b TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

KINETIC ENERGY; PHASE DIAGRAMS; PHASE EQUILIBRIA; PHASE SEPARATION; PHASE TRANSITIONS; SUPERFLUID HELIUM; VORTEX FLOW;

INTRACOMPONENT COUPLINGS; VORTEX LATTICES;

GAS CONDENSATES;

EID: 2542456603     PISSN: 00319007     EISSN: 10797114     Source Type: Journal    
DOI: 10.1103/PhysRevLett.91.150406     Document Type: Article

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19. The energy is analogous to that of a binary alloy, in which (Formula presented) (Formula presented) atoms and (Formula presented) (Formula presented) atoms are distributed on (Formula presented) lattice sites. At each site there is only (Formula presented) or (Formula presented) ((Formula presented) or 1) atom. Denoting the three kinds of interaction energies between the atoms as (Formula presented), (Formula presented), and (Formula presented), the interaction energy of this system reads (Formula presented). The replacement (Formula presented) reduces this energy to (Formula presented). When the coefficient (Formula presented), the interaction is antiferromagnetic, while for (Formula presented) it is ferromagnetic. See, for example, K. Huang, Statistical Mechanics (Wiley, New York, 1987), 2nd ed., Chap.�14.
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