Research output: Contribution to journal › Article › peer-review
The present paper is dedicated to the investigation of a two-dimensional Bose system with the density-density type interparticle interaction. We showed the possibility of a finite temperature phase transition and investigated the Goldstone singularities for both homogeneous and vortex ground states. The critical exponents of the O(n>1) symmetric ϕ 4 model were computed within the ε-expansion for ε=2.
Original language | English |
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Pages (from-to) | 206-214 |
Number of pages | 9 |
Journal | Nuclear Physics B |
Volume | 936 |
DOIs | |
State | Published - Nov 2018 |
ID: 36970796