Effective interaction potential and superfluid–solid transition of spatially indirect excitons

DOI10.1088/1751-8113/42/21/214016zbMATH Open1170.82435arXiv0810.2730OpenAlexW1993475907MaRDI QIDQ3398082

Author name not available (Why is that?)

Publication date: 25 September 2009

Published in: Journal of Physics A: Mathematical and Theoretical (Search for Journal in Brave)

Abstract: Using an adiabatic approximation we derive an effective interaction potentially for spatially indirect excitons. Using this potential and path integral Monte Carlo simulations we study exciton crystllization and the quantum melting phase transition in a macroscopic system of 2D excitons. Furthermore, the superfluid fraction is calculated as a function of density and shown to vanish upon crystallization. We show that the commonly used dipole model fails to correctly describe indirect excitons in quantum well structures.

Full work available at URL: https://arxiv.org/abs/0810.2730

Mathematics Subject Classification ID

Phase transitions (general) in equilibrium statistical mechanics (82B26) Statistical mechanics of superfluids (82D50) Statistical mechanics of solids (82D20)

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