Characterization of excited states of ultracold atoms in optical lattices

Details Characterization of excited states of ultracold atoms in optical lattices Characterization of excited states of ultracold atoms in optical lattices

2011-06-24

arxiv.org/abs/1106.4906v1

Physics

Condensed Matter

Quantum Gases

remarks to kuba@if.uj.edu.pl please

Scientific paper

Loading ultracold atoms in an optical lattice from a Bose-Einstein condensate is generally a non-adiabatic process resulting in the dynamical excitation of a wavepacket, a combination of several eigenstates. Using the time evolving block decimation algorithm, we show how to extract information on these excited states, and how their properties differ from those of the ground state. This allows for a deeper understanding of nonadiabaticity in experimental realizations of insulating phases.

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