Correlations in a two-dimensional Bose gas with long-range interaction

B. Laikhtman*, R. Rapaport

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


We study the correlations of two-dimensional dipolar bosons with excitons in semiconductor bilayers as a specific case, in the whole temperature- concentration region. We show that at low concentrations, the Bose degeneracy is accompanied by strong multi-particle correlations and the system behaves as a Bose liquid. At high concentrations the repulsion suppresses quantum coherence and the system behaves as a classical liquid down to a temperature lower than typical for a Bose gas. The interaction energy of the particles is a sensitive tool for a measurement of the correlations. This theory can apply to other systems of bosons with extended interaction.

Original languageAmerican English
Article number27010
JournalEurophysics Letters
Issue number2
StatePublished - Jul 2009


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