Many Bosons in a Narrow Magnetic Feshbach Resonance

作者:Pricoupenko Ludovic*
来源:Physical Review Letters, 2013, 110(18): 180402.
DOI:10.1103/PhysRevLett.110.180402

摘要

The many-boson problem in the presence of an asymptotically narrow Feshbach resonance is considered. The low energy properties are investigated using a two-channel Hamiltonian. The energy spectrum of this model is shown to be bounded from below in the limit of a zero range interaction. This implies the promising possibility of achieving a strongly interacting bosonic phase in a dilute regime where the details of the actual interatomic forces are irrelevant. The integral relation between the energy and the one-body momentum distribution is derived.

  • 出版日期2013-4-30