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Spinor Bose–Einstein condensates; modulational instability.

We numerically observe the effect of homogeneous magnetic field on the modulationally stable case of polar phase in $F = 2$ spinor Bose–Einstein condensates (BECs). Also we investigate the modulational instability of uniaxial and biaxial (BN) states of polar phase. Our observations show that the magnetic field triggers the modulational instability and demonstrate that irrespective of the magnetic field effect the uniaxial and biaxial nematic phases show modulational instability.

T Mithun¹ K Porsezian¹

1. Department of Physics, School of Physical, Chemical and Applied Sciences, Pondicherry University, Pondicherry 605 014, India

Published

February 2014

Early published

8 February 2014