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29 March 2024
 
  » arxiv » cond-mat/0306076

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Mean field ground state of a spin-1 condensate in a magnetic field
Wenxian Zhang ; Su Yi ; Li You ;
Date 3 Jun 2003
Journal New J. Phys. vol 5, p77 (2003).
Subject Soft Condensed Matter | cond-mat.soft
AbstractWe revisit the topic of the mean field ground state of a spin-1 atomic condensate inside a uniform magnetic field ($B$) under the constraints that both the total number of atoms ($N$) and the magnetization ($cal M$) are conserved. In the presence of an internal state (spin component) independent trap, we also investigate the dependence of the so-called single spatial mode approximation (SMA) on the magnitude of the magnetic field and ${cal M}$. Our result indicate that the quadratic Zeeman effect is an important factor in balancing the mean field energy from elastic atom-atom collisions that are known to conserve both $N$ and $cal M$.
Source arXiv, cond-mat/0306076
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