Dynamically Generated Double Occupancy as a Probe of Cold Atom Systems

Abstract

The experimental investigation of quantum phases in optical lattice systems provides major challenges. Recently, dynamical generation of double occupancy via modulation of the hopping amplitude t has been used to characterize the strongly correlated phase of fermionic atoms. Here, we want to validate this experimental technique with a theoretical study of the driven Hubbard model using analytic methods. We find that conclusive evidence for a Mott phase can be inferred from such a measurement, provided that sufficiently low temperatures kT<<t can be reached.

5 pages, 3 figures

References in corpus (2)

• Orbital selective Mott transition in multi-band systems: slave-spin representation and dynamical mean-field theory
• Dynamical properties of ultracold bosons in an optical lattice

Cited by in corpus (1)

• Coherent pumping of a Mott insulator: Fermi golden rule versus Rabi oscillations