Bogoliubov theory of a Bose-Einstein condensate in the particle representation
Journal Article
·
· Physical Review. A
- Intytut Fizyki Uniwersytetu Jagiellonskiego, Ulica Reymonta 4, 30-059 Cracow (Poland)
In the number-conserving Bogoliubov theory of the Bose-Einstein condensate, the Bogoliubov transformation between quasiparticles and particles is nonlinear. We invert this nonlinear transformation and give a general expression for eigenstates of the Bogoliubov Hamiltonian in particle representation. The particle representation unveils the structure of a condensate multiparticle wave function. We give several examples to illustrate a general formalism.
- OSTI ID:
- 20633873
- Journal Information:
- Physical Review. A, Vol. 67, Issue 3; Other Information: DOI: 10.1103/PhysRevA.67.033608; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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