REVIEW
Phase diagram of the quantum O(2)-model in 2+1 dimensions
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Phase diagram of the quantum O(2)-model in 2+1 dimensions
read the original abstract
The quantum O(2) model in 2+1 dimensions is studied by simulating the 3d O(2) model near criticality. Finite densities are introduced by a non-zero chemical potential mu, and the worm algorithm is used to circumvent the sign problem. The renormalisation is discussed in some detail. We find that the onset value of the chemical potential coincides with the mass gap. The mu-dependence of the density rules out Bose-Einstein condensation and might be compatible with an interacting Fermi gas. The mu-T phase diagram is explored using the density and the magnetic susceptibility. In the cold, but dense regime of the phase diagram, we find a superfluid phase.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.