Path-integral Monte Carlo study on a droplet of a dipolar Bose-Einstein condensate stabilized by quantum fluctuation

TL;DR

This study uses path-integral Monte Carlo simulations to investigate how quantum fluctuations stabilize a dipolar Bose-Einstein condensate, preventing collapse in strongly dipolar dysprosium gases, aligning with recent experiments and theories.

Contribution

First application of path-integral Monte Carlo to analyze quantum fluctuation effects in dipolar BECs, demonstrating stabilization mechanisms against collapse.

Findings

Quantum fluctuations stabilize the condensate.

Agreement with recent experimental observations.

Provides a computational framework for dipolar BECs.

Abstract

Motivated by the recent experiments [H. Kadau et al., Nature (London) 530, 194 (2016); I. Ferrier-Barbut et al., arXiv:1601.03318] and theoretical prediction (F. W\"achtler and L. Santos, arXiv:1601.04501), the ground state of a dysprosium Bose-Einstein condensate with strong dipole-dipole interaction is studied using the path-integral Monte Carlo method. It is shown that quantum fluctuation can stabilize the condensate against dipolar collapse.