Mott Transition for Strongly-Interacting 1D Bosons in a Shallow Periodic Potential - Institut d'Optique Graduate School Access content directly
Journal Articles Physical Review A : Atomic, molecular, and optical physics [1990-2015] Year : 2016

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

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Guilhem Boéris, Lorenzo Gori, Marteen D. Hoogerland, Avinash Kumar, Eleonora Lucioni, et al.. Mott Transition for Strongly-Interacting 1D Bosons in a Shallow Periodic Potential. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2016, 93, 011601 (Rapid Comm.). ⟨10.1103/PhysRevA.93.011601⟩. ⟨hal-01199719v2⟩
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