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A study of coherently coupled two-component Bose-Einstein condensates

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Abstract

We present a self-consistent study of coherently coupled two-component Bose-Einstein condensates. Finite spin-flipping coupling changes the first order demixing phase transition for Bose-Bose mixtures to a second order phase transition between an unpolarized and a polarized state. We analise the excitation spectrum and the structure factor along the transition for a homogeneous system. We discuss the main differences at the transition between a coherent coupled gas and a two-component mixture. We finally study the ground state when spin-(in)dependent trapping potentials are added to the system, focusing on optical lattices, which give rise to interesting new configurations.

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Authors and Affiliations

  1. INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, 38123, Povo, Italy

    Marta Abad & Alessio Recati

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  1. Marta Abad
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  2. Alessio Recati
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Correspondence to Alessio Recati.

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Abad, M., Recati, A. A study of coherently coupled two-component Bose-Einstein condensates. Eur. Phys. J. D 67, 148 (2013). https://doi.org/10.1140/epjd/e2013-40053-2

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