Abstract
We study universal off-diagonal correlations in transverse quantum fluids (TQF); a new class of quasi-one-dimensional superfluids featuring long-range-ordered ground states. These exhibit unique self-similar space-time relations scaling with that serve as fingerprints of the specific states. The results obtained with the effective field theory are found to be in perfect agreement with ab initio simulations of hard-core bosons on a lattice; a simple microscopic realization of TQF. This allows an accurate determination—at nonzero temperature and finite system size—of such key ground-state properties as the condensate and superfluid densities, and characteristic parameter .
- Received 1 November 2023
- Accepted 5 January 2024
DOI:https://doi.org/10.1103/PhysRevA.109.L011302
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