Collective modes in two dimensional dipolar systems

ORAL

Abstract

Motivated by recent experimental progress in producing and manipulating ultracold polar molecules with a net electric dipole moment, we theoretically consider the many body effects of two-dimensional dipolar systems with the anisotropic and long-range dipole-dipole interactions. We calculate the collective modes in 2D dipolar systems, and also consider spatially separated bilayer and superlattice dipolar systems. Our aim is to obtain characteristic features of these dipolar systems. We also consider the detailed quantitative comparison between these dipolar systems and the extensively studied usual parabolic two-dimensional electron systems.

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Authors

  • Qiuzi Li

    University of Maryland-College Park

  • Euyheon Hwang

    Univ. of Maryland, University of Maryland-College Park, Univesity of Maryland, College Park

  • S. Das Sarma

    University of Maryland, Condensed Matter Theory Center and Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, Condensed Matter Theory Center and Joint Quantum Institute, Department of Physics, University of Maryland, College Park, MD 20742, Condensed Matter Theory Center and Joint Quantum Institute, Department of Physics, University of Maryland, College Park, Maryland, USA, University of Maryland, College Park, University of Maryland-College Park, Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park MD 20742-4111, Univ. of Maryland, University of Maryland, College Park, Maryland, USA, Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742-4111