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Thermodynamic Phase Diagram of Two-Dimensional Bosons in a Quasicrystal Potential

Published inPhysical Review Letters, vol. 130, no. 22, 220402
Publication date2023
First online date2023-05-31
Abstract

Quantum simulation of quasicrystals in synthetic bosonic matter now paves the way for the exploration of these intriguing systems in wide parameter ranges. Yet thermal fluctuations in such systems compete with quantum coherence and significantly affect the zero-temperature quantum phases. Here we determine the thermodynamic phase diagram of interacting bosons in a two-dimensional, homogeneous quasicrystal potential. We find our results using quantum Monte Carlo simulations. Finite-size effects are carefully taken into account and the quantum phases are systematically distinguished from thermal phases. In particular, we demonstrate stabilization of a genuine Bose glass phase against the normal fluid in sizable parameter ranges. We interpret our results for strong interactions using a fermionization picture and discuss experimental relevance.

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ZHU, Zhaoxuan, YAO, Hepeng, SANCHEZ-PALENCIA, Laurent. Thermodynamic Phase Diagram of Two-Dimensional Bosons in a Quasicrystal Potential. In: Physical Review Letters, 2023, vol. 130, n° 22, p. 220402. doi: 10.1103/PhysRevLett.130.220402
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ISSN of the journal0031-9007
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