Scientific Results

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

Year: 2013

Authors: Abad M., Recati A.

Autors Affiliation: INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, 38123 Povo, Italy

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.

Journal/Review: EUROPEAN PHYSICAL JOURNAL D

Volume: 67 (7)      Pages from: 148  to: 148

More Information: We acknowledge very useful discussions with I. Carusotto, Y. Li, D. Papoular, S. Stringari and A. Trombettoni. This work has been financially supported by ERC through the QGBE grant and by Provincia Autonoma di Trento.
DOI: 10.1140/epjd/e2013-40053-2

Citations: 45
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