Dimensional crossover in the superfluid-supersolid quantum phase transition

Bibliographic Details
Title: Dimensional crossover in the superfluid-supersolid quantum phase transition
Authors: Biagioni, G., Antolini, N., Alaña, A., Modugno, M., Fioretti, A., Gabbanini, C., Tanzi, L., Modugno, G.
Source: Physical Review X 12, 021019 (2022)
Publication Year: 2021
Collection: Condensed Matter
Subject Terms: Condensed Matter - Quantum Gases
More Details: We assess experimentally and theoretically the character of the superfluid-supersolid quantum phase transition recently discovered in trapped dipolar quantum gases. We find that one-row supersolids can have already two types of phase transitions, discontinuous and continuous, that are reminiscent of the first- and second-order transitions predicted in the thermodynamic limit in 2D and 1D, respectively. The smooth crossover between the two regimes is peculiar to supersolids and can be controlled via the transverse confinement and the atom number. We justify our observations on the general ground of the Landau theory of phase transitions. The quasi-adiabatic crossing of a continuous phase transition opens new directions of investigation for supersolids.
Comment: 15 pages, 15 figures
Document Type: Working Paper
DOI: 10.1103/PhysRevX.12.021019
Access URL: http://arxiv.org/abs/2111.14541
Accession Number: edsarx.2111.14541
Database: arXiv
More Details
DOI:10.1103/PhysRevX.12.021019