Quantum fluctuation-induced uniaxial and biaxial spin nematics
Feb, 2007
4 pages
Published in:
- Phys.Rev.Lett. 98 (2007) 160408
e-Print:
- cond-mat/0702052 [cond-mat.other]
View in:
Citations per year
Abstract: (arXiv)
It is shown that zero point quantum fluctuations (ZPQFs) completely lift the accidental continuous degeneracy that is found in mean field analysis of quantum spin nematic phases of hyperfine spin 2 cold atoms. The result is two distinct ground states which have higher symmetries: a uniaxial spin nematic and a biaxial spin nematic with dihedral symmetry . There is a novel first order quantum phase transition between the two phases as atomic scattering lengths are varied. We find that the ground state of atoms should be a uniaxial spin nematic. We note that the energy barrier between the phases could be observable in dynamical experiments.Note:
- 4 pages, 2 figures included; published version
References(33)
Figures(2)