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 (Low Temperature Physics):


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.

Downloads

Опубліковано

2011-06-29

Як цитувати

(1)
Chen Liang, Kong Wei, B.J. Ye, H.M. Wen, X.Y. Zhou, and R.D. Han, Green’s function method to the ground state properties of a two-component Bose-Einstein condensate: Бозе-эйнштейновская конденсация, Low Temp. Phys. 37, 708-714, (2011) [Fiz. Nizk. Temp. 37, 708-714, (2011)] DOI: https://doi.org/10.1063/1.3633685.

Номер

Том 37 № 7 (2011)

Розділ

Статті

Завантаження

Дані завантаження ще не доступні.