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arXiv · 0909.3357

Reentrance of Bose-Einstein condensation in spinor atomic gases in magnetic field

Chengjun Tao·Zhirong Jiao·Qiang Gu
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Abstract

We calculate the Bose-Einstein condensation (BEC) temperature of spin-1 atomic bosons in external magnetic field, taking into account the influence of the quadratic Zeeman effect. In case that the quadratic Zeeman coefficient is positive, the BEC temperature exhibits a nontrivial dependance on the magnetic field and a magnetic-field-induced reentrant phenomenon of BEC is observed. This phenomenon could be well understood by the competition between the linear and quadratic Zeeman effects. Reentrance of BEC in a trapped spinor Bose gas is also discussed.

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Chengjun Tao, Zhirong Jiao, Qiang Gu. 2009-09-18. Reentrance of Bose-Einstein condensation in spinor atomic gases in magnetic field. https://doi.org/10.1103/physreva.79.043614

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