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Loss-induced phase separation and pairing for three-species atomic lattice fermions

A. Privitera, I. Titvinidze, S.-Y. Chang, S. Diehl, A. J. Daley, and W. Hofstetter
Phys. Rev. A 84, 021601(R) – Published 3 August 2011

Abstract

We study the physics of a three-component Fermi gas in an optical lattice, in the presence of a three-body constraint arising due to strong three-body loss. Using analytical and numerical techniques, we show that an atomic color superfluid phase is formed in this system and undergoes phase separation between unpaired fermions and superfluid pairs. This phase separation survives well above the critical temperature, giving a clear experimental signature of the three-body constraint.

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  • Received 23 March 2011

DOI:https://doi.org/10.1103/PhysRevA.84.021601

©2011 American Physical Society

Authors & Affiliations

A. Privitera1,2,3, I. Titvinidze1, S.-Y. Chang4,5, S. Diehl4, A. J. Daley4, and W. Hofstetter1

  • 1Institut für Theoretische Physik, Johann Wolfgang Goethe-Universität, 60438 Frankfurt am Main, Germany
  • 2Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy
  • 3Democritos National Simulation Center, Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali (CNR-IOM) and International School for Advanced Studies (SISSA), I-34136 Trieste, Italy
  • 4Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, and Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria
  • 5Department of Physics, The Ohio State University, Columbus, OH 43210, USA

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Issue

Vol. 84, Iss. 2 — August 2011

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