Year: 2025
Type: article
Abstract: Motivated by recent experimental realization of a Bose-Einstein condensate (BEC) of dipolar molecules, we develop superfluid transport theory for a dissipative BEC to show that a weak uniform two-body loss can induce phase rigidity, leading to superfluid transport of bosons without repulsive interactions. A generalized f-sum rule is shown to hold for a dissipative superfluid as a consequence of weak U(1) symmetry. We also demonstrate that dissipation enhances the stability of a molecular BEC with dipolar interactions. Possible experimental signatures of dissipative superfluidity are discussed.
Source: Physical Review Letters
DOI: 10.1103/ww8r-sjhb
Authors: Hongchao Li, Xie-Hang Yu, Masaya Nakagawa, Masahito Ueda
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4415166350