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

Abstract

Motivated by recent experimental advances in creating polar molecular gases in the laboratory, we theoretically investigate the many body effects of two-dimensional dipolar systems with the anisotropic and $1/r^3$ 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 inter-particle interaction is Coulombic.

11 pages, 7 figures

References in corpus (17)

• A High Phase-Space-Density Gas of Polar Molecules
• Bose-Einstein condensation of chromium
• Ultracold dense gas of deeply bound heteronuclear molecules
• Controlling the hyperfine state of rovibronic ground-state polar molecules
• Exotic plasmon modes of double layer graphene
• Linear plasmon dispersion in single-wall carbon nanotubes and the collective excitation spectrum of graphene
• Collective modes of the massless Dirac plasma
• Trapping ultracold dysprosium: a highly magnetic gas for dipolar physics
• Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules
• Plasmon-phonon Strongly-Coupled Mode in Epitaxial Graphene
• Ultracold polar molecules near quantum degeneracy
• Observation of Collective Excitations of the Dilute 2D Electron System
• Anisotropic Fermi liquid theory of the ultra cold fermionic polar molecules: Landau parameters and collective modes
• Critical superfluid velocity in a trapped dipolar gas
• Zero Sound in Dipolar Fermi Gases
• Universal temperature corrections to Fermi liquid theory in an interacting electron system
• Compressibility, zero sound, and effective mass of a fermionic dipolar gas at finite temperature

Cited by in corpus (21)

• Production of a dual-species Bose-Einstein condensate of Rb and Cs atoms
• Molecular spectroscopy for ground-state transfer of ultracold RbCs molecules
• A quantum hydrodynamics approach to the formation of new types of waves in polarized two-dimension systems of charged and neutral particles
• Collective modes, stability and superfluid transition of a quasi-two-dimensional dipolar Fermi gas
• A review for compact model of graphene field-effect transistors
• Novel Fermi Liquid of 2D Polar Molecules
• Density wave instabilities of tilted fermionic dipoles in a multilayer geometry
• Ground-state and dynamical properties of two-dimensional dipolar Fermi liquids
• Spin-orbit coupled Fermi liquid theory of ultra-cold magnetic dipolar fermions
• Density-wave phases of dipolar fermions in a bilayer
• Dipolar Drag in Bilayer Harmonically Trapped Gases
• Unconventional symmetries of Fermi liquid and Cooper pairing properties with electric and magnetic dipolar fermions
• Superfluidity of a dipolar Fermi gas in 2D optical lattices bilayer
• Self-consistent field theory of polarized BEC: dispersion of collective excitation
• Dispersion properties of transverse waves propagating in the electrically polarized BECs
• Electrostatic Langmuir and SEAWs in spin polarized plasma double layer
• Dipolar fermions in a multilayer geometry
• Mixed parity pairing in a dipolar gas
• Ultracold and dense samples of ground-state molecules in lattice potentials
• Multiple polaron quasiparticles with dipolar fermions in a bilayer geometry
• Mutual dipolar drag in a bilayer Fermi gas