Dynamical instability and loss of p-band bosons in optical lattices

Details Dynamical instability and loss of p-band bosons in optical lattices Dynamical instability and loss of p-band bosons in optical lattices

2010-09-28

arxiv.org/abs/1009.5465v2

Phys. Rev. A 83, 013610 (2011)

Physics

Condensed Matter

Quantum Gases

7 figures, minor changes to the earlier version

Scientific paper

We study how the bosonic atoms on the excited p-band of an optical lattice are coupled to the lowest s-band and the 2nd excited d-band. We find that in some parameter regimes the atom-atom interactions can cause a dynamical instability of the p-band atoms towards decay to the s- and d-bands. Furthermore, even when dynamical instability is not expected s- and d-bands can become substantially populated.

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