BEC in Spin-orbit Coupled Optical Lattices: Flat Band and Instability

ORAL

Abstract

We investigate the dynamics of a Bose-Einstein condensate (BEC) in the presence of spin-orbit coupling and a one dimensional optical lattice. We show that the combination of the experimentally already realized spin-orbit coupling and the optical lattice potential yields a flat ground state Bloch energy band. The dynamical and Landau instabilities of the BEC in the spin-orbit coupled optical lattice are also investigated.

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Authors

  • Chuanwei Zhang

    Department of Physics and Astronomy, Washington State University, Pullman, WA 99164

  • Chandra Raman

    Argonne National Laboratory, Max-Planck-Institute for nuclear physics, Saupfercheckweg 1, 69029 Heidelberg, Germany, Department of Physics, University of Rostock, 18051 Rostock, Germany, Department of Physics, American University of Sharjah, POB 26666, Sharjah, United Arab Emirates, KSU, KSU, MPQ, MPIK, CFEL, MPIK, MPQ, DESY, CFEL, Max Planck Research Department for Structural Dynamics at the University of Hamburg, CFEL, Helmholtz Zentrum Berlin, SLAC National Accelerator Laboratory, University of California Santa Cruz, University of California Berkeley, Lawrence Berkeley National Laboratory, Boston University, Laboratoire Kastler Brossel, Ecole Normale Superieure, University of Vienna, Vienna Center of Quantum Science and Technology, Austria, University of Duisburg-Essen, Germany, Kansas City Plant, National Secure Manufacturing Center, University of Nebraska-Lincoln, Department of Physics, Florida A\&M University, Tallahassee, FL-32307, National Institute of Standards and Technology, Inst. Fuer Kernphysik Univ. Frankfurt, Lawrence Livermore National Laboratory, GSI Darmstadt, University College London, Centre for Antimatter-Matter Studies, University of North Texas, Department of Physics, University of California, Department of Physics, Tsinghua University, SUNY Stony Brook, Institute of Theoretical Chemistry, University of Vienna, Instituto de Qu\'imica F\'isica Rocasolano, CSIC, Chemical Research Center of the Hungarian Academy of Sciences, SRC, Univ. of Wisconsin - Madison, Univ. of Wisconsin - Madison, Univ. of Evansville, University of Frankfurt, Department of Physics, Auburn University, J.R. Macdonald Laboratory, Kansas State University, Kansas State University and Max-Planck Institut for Quantenoptik, Max-Planck Institut for Quantenoptik, J.R. Macdonald Laboratory, Department of Physics, Kansas State University, University of Wisconsin, CQuIC University of New Mexico, CQuIC University of Arizona, University of Calgary, Louisiana State University Physics \& Astronomy, Stanford University, University of Delaware, University of California, Berkeley, University of Vienna, Institut fuer Quantenoptik, Leibniz Universitaet Hannover, University of California at Berkeley, Department of Physics and Astronomy, York University, University of California - Los Angeles, Temple University, JILA, California Maritime Academy, Auburn University, Texas A\&M University and Princeton University, Texas A\&M University, Max Planck Institute of Quantum Optics, University of Strathclyde, SUPA, Physics Department, Harvard University, Department of Physics, Caltech University, Harvard University, University of Innsbruck, IQOQI, University of Strasbourg, Caltech, University of Hamburg, Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, Australia, Institute for Quantum Electronics, ETH Zurich, 8093 Zurich, Switzerland, University of Wisconsin-Madison, Thales Research and Technology, Ecole Normale Sup\'erieure, Thales III-V Lab, Thales Research and Technology; Ecole Normale Sup\'erieure, Georgia Institute of Technology, Insitute of Atomic and Molecular Physics, Jilin University China, School of Chemsitry, University of Leeds, UK, Depramento de Quimica Fisica, Universidad Complutense, Spain, Department of Chemistry, University of Oxford, UK, Northrop Grumman - Navigation Systems Division, Fachbereich Physik, Technische Universit\"at Kaiserslautern, Department of Chemistry and The PULSE Institute, Stanford University, Stanford, CA 94305 and SLAC National Accelerator Laboratory, Menlo Park, CA, TU Kaiserslautern, Massachusetts Institute of Technology, University of Belgrade, Department of Physics, University of California, Berkeley; Nuclear Science Division, LBNL, S.I. 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