Superfluidity of strongly correlated bosons in two- and three-dimensional traps

Abstract

We analyze the superfluid phase transition of harmonically confined bosons with long-range interaction in both two and three dimensions in a broad parameter range from weak to strong coupling. We observe that the onset of superfluidity occurs in $3D$ at significantly lower temperatures compared to $2D$. This is demonstrated to be a quantum degeneracy effect. In addition, the spatial distribution of superfluidity across the shells of the clusters is investigated. It is found that superfluidity is substantially reduced in the outer layers due to increased correlation effects.

Extensions to introduction and additional references

References in corpus (7)

• Worm Algorithm and Diagrammatic Monte Carlo: A New Approach to Continuous-Space Path Integral Monte Carlo Simulations
• Crustal Entrainment and Pulsar Glitches
• Structure, superfluidity, and quantum melting of hydrogen clusters
• Metastable superfluidity of repulsive fermionic atoms in optical lattices
• Ultracold Lattice Gases with Periodically Modulated Interactions
• Local Superfluidity of Parahydrogen Clusters
• Mesoscopic Coulomb Supersolid

Cited by in corpus (9)

• Path Integral Monte Carlo Simulation of Degenerate Electrons: Permutation-Cycle Properties
• Nonlinear density response from imaginary-time correlation functions: Ab initio path integral Monte Carlo simulations of the warm dense electron gas
• Effective electronic forces and potentials from ab initio path integral Monte Carlo simulations
• Fermion Sign Problem in Path Integral Monte Carlo Simulations: Grand-canonical ensemble
• Ab initio Path Integral Monte Carlo Simulations of Quantum Dipole Systems in Traps: Superfluidity, Quantum Statistics, and Structural Properties
• Abnormal superfluid fraction and structural properties of electrons in 2D and 3D quantum dots: an ab initio path-integral Monte Carlo study
• Non-perturbative insights into the spectral properties of QCD at finite temperature
• Quantum correlations in one-dimensional Wigner molecules
• Superfluid response of two-dimensional parahydrogen clusters in confinement