Dynamic structure factor of Fermi superfluid in the BEC-BCS crossover

Simple item page
dc.creatorGhosh, Tarun Kanti
dc.date2007-07-26
dc.date.accessioned2026-07-07T08:27:59Z
dc.date.available2026-07-07T08:27:59Z
dc.descriptionWe consider cigar shaped Fermi superfluid in the BEC-BCS crossover. Using polytropic form of equation of state, we derive low energy multibranch bosonic excitations and the corresponding density fluctuations in three different regimes along the crossover, namely weak-coupling BCS, unitarity and molecular BEC regimes. Bragg spectroscopy can be used to probe the multibranch nature of the low energy bosonic excitations by measuring dynamic structure factor. Therefore, we calculate dynamic structure factor in those three different regimes. In the Bragg spectroscopy, an actual observable is momentum imparted to the superfluid due to the Bragg potential. We also present results of the momentum imparted to the superfluid due to the Bragg pulses.
dc.descriptionTo appear in Physical Review A
dc.identifierhttps://arxiv.org/abs/0707.3927
dc.identifierhttp://arxiv.org/abs/0707.3927
dc.identifierPhysical Review A 76, 033602 (2007)
dc.identifierdoi:10.1103/PhysRevA.76.033602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/137459
dc.subjectOther Condensed Matter
dc.titleDynamic structure factor of Fermi superfluid in the BEC-BCS crossover
dc.typetext

Files

Collections

arXiv