Coexistence, interfacial energy, and the fate of microemulsions in 2D dipolar bosons

Abstract

The superfluid-crystal quantum phase transition of a system of purely repulsive dipolar bosons in two dimensions is studied by Quantum Monte Carlo simulations at zero temperature. We determine freezing and melting densities, and estimate the energy per unit length of a macroscopic interface separating the two phases. The results rule out the microemulsion scenario for any physical realization of this system, given the exceedingly large predicted size of the bubbles.

arXiv commentFour figures in color

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• Correlation effects and collective excitations in bosonic bilayers: role of quantum statistics, superfluidity and dimerization transition
• Path integral Monte Carlo ground state approach: Formalism, implementation, and applications
• Phases of dipolar bosons in a bilayer geometry
• Absence of superfluidity in 2D dipolar Bose striped crystals
• Liquid crystal phases of two-dimensional dipolar gases and Berezinskii-Kosterlitz-Thouless melting
• Rotons and Bose condensation in Rydberg-dressed Bose Gases
• Dipolar Bilayer with Antiparallel Polarization -- a Self-Bound Liquid
• Tuneable defect interactions and supersolidity in dipolar quantum gases on a lattice potential
• Nonuniversal beyond mean field properties of quasi-two-dimensional dipolar Bose gases
• Ground state phase diagram of Gaussian-Core bosons in two dimensions
• Dipolar bosons in one dimension: the case of longitudinal dipole alignment
• Incommensurability effects on dipolar bosons in optical lattices
• Superfluidity of a dipolar Fermi gas in 2D optical lattices bilayer
• Classical crystal formation of dipoles in two dimensions
• Zonal estimators for quasiperiodic bosonic many-body phases
• Phase diagram of hard core bosons with anisotropic interactions
• Bose one-component plasma in 2D: a Monte Carlo study