Amplitude Effects in Lattice Modulation Spectroscopy
Abstract
Linear-response calculations for a periodically modulated optical lattice depth within the Mott-insulating phase of the Hubbard model clearly predict a resonance in the doublon production rate at the Hubbard repulsion U. Using a recently developed strong-coupling approach, we examine the effect of an increasingly high amplitude of the modulation. We find that multi-quanta excitations are likely to occur beyond a certain threshold.
- Publication:
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APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- May 2013
- Bibcode:
- 2013APS..DMP.K1055D