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    Ground-state phases of a mixture of spin-1 and spin-2 Bose-Einstein condensates

    Naoki Irikura1, Yujiro Eto2, Takuya Hirano3, and Hiroki Saito1

    • 1Department of Engineering Science, University of Electro-Communications, Tokyo 182-8585, Japan
    • 2National Institute of Advanced Industrial Science and Technology (AIST), NMIJ, Tsukuba, Ibaraki 305-8568, Japan
    • 3Department of Physics, Gakushuin University, Tokyo 171-8588, Japan

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    Phys. Rev. A 97, 023622 – Published 13 February, 2018

    DOI: https://doi.org/10.1103/PhysRevA.97.023622

    Abstract

    We investigate the ground-state phases of a mixture of spin-1 and spin-2 Bose-Einstein condensates at zero magnetic field. In addition to the intraspin interactions, two spin-dependent interaction coefficients are introduced to describe the interspin interaction. We systematically explore the wide parameter space, and obtain phase diagrams containing a rich variety of phases. For example, there exists a phase in which the spin-1 and spin-2 vectors are tilted relative to each other breaking the axial symmetry.

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    Spinor dynamics in a mixture of spin-1 and spin-2 Bose-Einstein condensates

    Yujiro Eto, Hitoshi Shibayama, Hiroki Saito, and Takuya Hirano
    Phys. Rev. A 97, 021602(R) (2018)

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    Phys. Rev. A 97, 023622– Published 13 February, 2018
    • Received 14 December 2017
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