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Evolution of Goldstone mode in binary condensate mixtures

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Abstract

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.

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Authors and Affiliations

  1. Physical Research Laboratory, Navrangpura, Ahmedabad, 380009, Gujarat, India

    A. Roy & D. Angom

  2. Instituto de Física Teórica, UNESP – Universidade Estadual Paulista, 01.140-070 São Paulo, São Paulo, Brazil

    S. Gautam

  3. Indian Institute of Technology, Gandhinagar, Ahmedabad, 382424, Gujarat, India

    A. Roy

Authors
  1. A. Roy
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  2. S. Gautam
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  3. D. Angom
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Correspondence to A. Roy.

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Roy, A., Gautam, S. & Angom, D. Evolution of Goldstone mode in binary condensate mixtures. Eur. Phys. J. Spec. Top. 224, 571–575 (2015). https://doi.org/10.1140/epjst/e2015-02388-8

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  • DOI: https://doi.org/10.1140/epjst/e2015-02388-8

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