Collective modes of monolayer, bilayer, and multilayer fermionic dipolar liquid

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.82.235126· OSTI ID:21502910

Qiuzi, Li; Hwang, E H; Das Sarma, S ^[1]

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1. Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)

Motivated by recent experimental advances in creating polar molecular gases in the laboratory, we theoretically investigate the many-body effects of two-dimensional (2D) dipolar systems with the anisotropic and 1/r{sup 3} dipole-dipole interactions. We calculate collective modes of 2D dipolar systems and also consider spatially separated bilayer and multilayer superlattice dipolar systems. We obtain the characteristic features of collective modes in quantum dipolar gases. We quantitatively compare the modes of these dipolar systems with the modes of the extensively studied usual two-dimensional electron systems, where the interparticle interaction is Coulombic.

• OSTI ID: 21502910
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 82, Issue 23; Other Information: DOI: 10.1103/PhysRevB.82.235126; (c) 2010 American Institute of Physics; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
COMPARATIVE EVALUATIONS
DIPOLES
ELECTRONS
INTERACTIONS
LAYERS
LIQUIDS
MANY-BODY PROBLEM
SUPERLATTICES
TWO-DIMENSIONAL CALCULATIONS
ELEMENTARY PARTICLES
EVALUATION
FERMIONS
FLUIDS
LEPTONS
MULTIPOLES