Polar molecules in bilayers with high population imbalance
Anno: 2013
Autori: Klawunn M., Recati A.
Affiliazione autori: INO-CNR Bose-Einstein Condensation Center, Department of Physics, Università di Trento, 38123 Povo, Italy
Abstract: We investigate a dilute Fermi gas of polar molecules confined into a bilayer setup with dipole moments polarized perpendicular to the layers. In particular, we consider the extreme case of population imbalance, where we have only one particle in one layer and many particles in the other one. The single molecule is attracted by the dilute Fermi gas through the interlayer dipole-dipole force, presenting an interesting impurity problem with long-range anisotropic interaction. We characterize the quasiparticle, calculating its chemical potential with a Brueckner-Hartree-Fock approach. Moreover, we determine the momentum relaxation rate for finite momentum and temperature. The latter is reminiscent of Coulomb drag in bilayer electronic systems. For a confined system we relate the results for the chemical potential with the measurement of the oscillation frequency of the impurity. The momentum relaxation rate provides instead an estimate on how quickly the oscillations are damped.
Giornale/Rivista: PHYSICAL REVIEW A
Volume: 88 (1) Da Pagina: 013633 A: 013633
Maggiori informazioni: Useful discussions with Stefano Giorgini, Natalia Matveeva, Alexander Pikovski, and Luis Santos are acknowledged. This work has been supported by ERC through the QGBE grant and by Provincia Autonoma di Trento.DOI: 10.1103/PhysRevA.88.013633Citazioni: 5dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-14Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui