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APS » Journals » Phys. Rev. A » Volume 61 » Issue 5
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Phys. Rev. A 61, 051604(R) (2000) [4 pages]

Properties of excitations in systems with a spinor Bose-Einstein condensate

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Péter Szépfalusy1,2 and Gergely Szirmai1
1Department of Physics of Complex Systems, Roland Eötvös University, Pázmány Péter Sétány 1/A, H-1117 Budapest, Hungary
2Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences, P.O. Box 49, H-1525 Budapest, Hungary

Received 1 October 1999; published 14 April 2000

A homogeneous gas of atoms with hyperfine spin F=1 is considered below the critical temperature of the Bose-Einstein condensation. The general structure of the correlation functions (both for density and spin fluctuations) and their connection to the thermal Green’s functions are worked out. The damping of the modes is calculated in the random-phase approximation.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.61.051604
DOI:
10.1103/PhysRevA.61.051604
PACS:
03.75.Fi, 67.40.Db, 05.30.Jp
 
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