The Higgs mode in a two-dimensional superfluid

Details The Higgs mode in a two-dimensional superfluid The Higgs mode in a two-dimensional superfluid

2012-04-23

arxiv.org/abs/1204.5190v2

Physics

Condensed Matter

Quantum Gases

9 pages, 13 figures

Scientific paper

We present solid evidence for the existence of a well-defined Higgs amplitude mode in two-dimensional relativistic field theories based on analytically continued results from quantum Monte Carlo simulations of the Bose-Hubbard model in the vicinity of the superfluid-Mott insulator quantum critical point, featuring emergent particle-hole symmetry and Lorentz-invariance. The Higgs boson, seen as a well-defined low-frequency resonance in the spectral density, is quickly pushed to high energies in the superfluid phase and disappears by merging with the broad secondary peak at the characteristic interaction scale. Simulations of a trapped system of ultra-cold $^{87}$Rb atoms demonstrate that the low-frequency resonance feature is lost for typical experimental parameters, while the characteristic frequency for the onset of strong response is preserved.

Affiliated with

Also associated with

No associations

Rating

The Higgs mode in a two-dimensional superfluid does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Higgs mode in a two-dimensional superfluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Higgs mode in a two-dimensional superfluid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-518323