| Autor: |
Kuklov, Anatoly, Pollet, Lode, Prokof'ev, Nikolay, Radzihovsky, Leo, Svistunov, Boris |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Phys. Rev. A 109, L011302 (2024) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevA.109.L011302 |
| Popis: |
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 $x^2/D\tau$ that serve as fingerprints of the specific states. The results obtained with the effective field theory are found to be in perfect agreement with {\it 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 $D$. |
| Databáze: |
arXiv |
| Externí odkaz: |
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