Griffiths physics in an ultracold Bose gas

M. E. W. Reed, Z. S. Smith, Aftaab Dewan, and S. L. Rolston
Phys. Rev. A 99, 063611 – Published 17 June 2019

Abstract

Coupled XY model systems consisting of three-dimensional (3D) systems with disordered interlayer physics are of significant theoretical interest. We realize a set of coupled quasi-2D layers of Rb87 in the presence of disordered interlayer coupling. This is achieved with our high bandwidth arbitrary optical lattice to obviate restrictions on the dimensionality of disorder with speckle-generated optical fields. We identify phase crossover regions compatible with the existence of a pair of intermediate Griffiths phases between a thermal state and the emergence of bulk 3D superfluidity.

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  • Received 22 February 2019

DOI:https://doi.org/10.1103/PhysRevA.99.063611

©2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalCondensed Matter, Materials & Applied Physics

Authors & Affiliations

M. E. W. Reed, Z. S. Smith, Aftaab Dewan, and S. L. Rolston*

  • Joint Quantum Institute, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742, USA

  • *rolston@umd.edu

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Issue

Vol. 99, Iss. 6 — June 2019

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