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Preprints, Working Papers, ... Year : 2015

Mott Transition for Strongly-Interacting 1D Bosons in a Shallow Periodic Potential

Abstract

We investigate the superfluid-insulator transition of one-dimensional interacting Bosons in both deep and shallow periodic potentials. We compare a theoretical analysis based on Monte-Carlo simulations in continuum space and Luttinger liquid approach with experiments on ultracold atoms with tunable interactions and optical lattice depth. Experiments and theory are in excellent agreement. It provides a quantitative determination of the critical parameter for the Mott transition and defines the regime of validity of widely used approximate models, namely the Bose-Hubbard and sine-Gordon models.
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Dates and versions

hal-01199719 , version 1 (15-09-2015)
hal-01199719 , version 2 (05-10-2015)

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  • HAL Id : hal-01199719 , version 1

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G Boéris, L Gori, M. D. Hoogerland, A. Kumar, E Lucioni, et al.. Mott Transition for Strongly-Interacting 1D Bosons in a Shallow Periodic Potential. 2015. ⟨hal-01199719v1⟩
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