Green's function method to the ground state properties of a two-component Bose-Einstein condensate

Бозе-эйнштейновская конденсация

Автор(и)

  • Chen Liang Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  • Kong Wei Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  • B.J. Ye Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  • H.M. Wen Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  • X.Y. Zhou Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
  • R.D. Han Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

DOI:

https://doi.org/10.1063/1.3633685

Ключові слова:

Green’s function, elementary excitation, Bose–Einstein condensate.

Анотація

The elementary excitation spectrum of a two-component Bose–Einstein condensate is obtained by Green’s function method. It is found to have two branches. In the long-wave limit, the two branches of the excitation spectrum are reduced to one phonon excitation and one single-particle excitation. With the obtained excitation spectrum and the Green’s functions, the depletion of the condensate and the ground state energy have also been calculated in this paper.

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Опубліковано

2011-06-29

Як цитувати

(1)
Liang, C.; Wei, K.; Ye, B.; Wen, H.; Zhou, X.; Han, R. Green’s Function Method to the Ground State Properties of a Two-Component Bose-Einstein Condensate: Бозе-эйнштейновская конденсация. Fiz. Nizk. Temp. 2011, 37, 708-714.

Номер

Том 37 № 7 (2011)

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