Phases of dipolar bosons in a bilayer geometry
arXiv:1612.08019 · doi:10.1103/PhysRevA.95.023622
Abstract
We study by first principle computer simulations the low temperature phase diagram of bosonic dipolar gases in a bilayer geometry, as a function of the two control parameters, i.e., the in-plane density and the interlayer distance. We observe four distinct phases, namely paired and decoupled superfluids, as well as a crystal of dimers and one consisting of two aligned crystalline layers. A direct quantum phase transition from a dimer crystal to two independent superfluids is observed in a relatively wide range of parameters. No supersolid phase is predicted for this system.
7 pages, 4 figures
References in corpus (15)
- Quantum-fluctuation-driven crossover from a dilute Bose-Einstein condensate to a macro-droplet in a dipolar quantum fluid
- Strongly correlated 2D quantum phases with cold polar molecules: controlling the shape of the interaction potential
- Worm Algorithm and Diagrammatic Monte Carlo: A New Approach to Continuous-Space Path Integral Monte Carlo Simulations
- A superfluid-droplet crystal and a free-space supersolid in a dipole-blockaded gas
- Quantum phase transition in a two-dimensional system of dipoles
- Quantum fluids of self-assembled chains of polar molecules
- Interlayer superfluidity in bilayer systems of fermionic polar molecules
- Quantum phase transitions of polar molecules in bilayer systems
- Quantum melting of a crystal of dipolar bosons
- Population size bias in Diffusion Monte Carlo
- Single-particle vs. pair superfluidity in a bilayer system of dipolar bosons
- Supersolid phases of cold atom assemblies
- Role of Bose Statistics in Crystallization and Quantum Jamming
- Coexistence, interfacial energy, and the fate of microemulsions in 2D dipolar bosons
- Structure and melting behavior of classical bilayer crystals of dipoles
Cited by in corpus (5)
- Path-integral Monte Carlo worm algorithm for Bose systems with periodic boundary conditions
- Attractive and repulsive dipolar interaction in bilayers of indirect excitons
- Thermal and Quantum Fluctuation Effects in Quasiperiodic Systems in External Potentials
- Ground and excited states of coupled exciton liquids in electron-hole quadrilayers
- 2D Gapless Topological Superfluids Generated by Pairing Phases