Bosonic hard spheres in quasi-one-dimensional bichromatic optical lattices

2015/04/13 by M. C. Gordillo, C. Carbonell-Coronado, F. De Soto
Chemistry · Physics and Astronomy · #Astronomy #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Hard spheres #Materials science #Physics #Quantum mechanics #Quantum optics and atomic interactions #SPHERES #Spectroscopy and Laser Applications #cond-mat.quant-gas

paper · pdf · doi:10.1103/physreva.91.043618

published as Phys. Rev. A 91, 043618 (2015) · 6 figures

openalex publication_date 2015/04/13 · arxiv created 2015/04/21 · arxiv updated 2015/04/24 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We calculated the phase diagram of a continuous system of hard spheres loaded in a quasi-one-dimensional bichromatic optical lattice. The wavelengths of both lattice-defining lasers were chosen to model an incommensurate arrangement. Densities of one particle and half a particle per potential well were considered. Our results can be compared directly to those of the experimental system [L. Fallani, J. E. Lye, V. Guarrera, C. Fort, and M. Inguscio, Phys. Rev. Lett. 98, 130404 (2007)] from which our initial parameters were taken. The phase diagrams for both densities are significatively different from those obtained by describing the same experimental setup with a Bose-Hubbard model.

Citations

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