Effects of strong correlations for 2D Bose-Einstein condensed dipolar excitons
arXiv:0801.0150 · doi:10.1016/j.ssc.2007.07.041
Abstract
By doing quantum Monte Carlo ab initio simulations we show that dipolar excitons, which are now under experimental study, actually are strongly correlated systems. Strong correlations manifest in significant deviations of excitation spectra from the Bogoliubov one, large Bose condensate depletion, short-range order in the pair correlation function, and peak(s) in the structure factor.
References in corpus (4)
- Observation of dipole-dipole interaction in a degenerate quantum gas
- Angular distribution of photoluminescence as a probe of Bose Condensation of trapped excitons
- Weakly interacting two-dimensional system of dipoles: limitations of mean-field theory
- Superfluidity of two- dimensional excitons in flat and harmonic traps