https://doi.org/10.1140/epjst/e2015-02388-8
Regular Article
Evolution of Goldstone mode in binary condensate mixtures
1 Physical Research Laboratory, Navrangpura, Ahmedabad - 380009, Gujarat, India
2 Instituto de Física Teórica, UNESP – Universidade Estadual Paulista, 01.140-070 São Paulo, São Paulo, Brazil
3 Indian Institute of Technology, Gandhinagar, Ahmedabad - 382424, Gujarat, India
a e-mail: arkoroy@prl.res.in
Received: 15 October 2014
Revised: 19 February 2015
Published online: 9 April 2015
We show that the third Goldstone mode in the two-species condensate mixtures, which emerges at phase-separation, gets hardened when the confining potentials have separated trap centers. The sandwich type condensate density profiles, in this case, acquire a side-by-side density profile configuration. We use Hartree-Fock-Bogoliubov theory with Popov approximation to examine the mode evolution and density profiles for these phase transitions at T = 0.
© EDP Sciences, Springer-Verlag, 2015
