Zonal Estimators for Quasiperiodic Bosonic Many-Body Phases.

Entropy (Basel)

Dipartimento di Fisica e Astronomia, Università di Firenze, I-50019 Sesto Fiorentino, Italy.

Published: February 2022

In this work, we explore the relevant methodology for the investigation of interacting systems with contact interactions, and we introduce a class of zonal estimators for path-integral Monte Carlo methods, designed to provide physical information about limited regions of inhomogeneous systems. We demonstrate the usefulness of zonal estimators by their application to a system of trapped bosons in a quasiperiodic potential in two dimensions, focusing on finite temperature properties across a wide range of values of the potential. Finally, we comment on the generalization of such estimators to local fluctuations of the particle numbers and to magnetic ordering in multi-component systems, spin systems, and systems with nonlocal interactions.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8871071PMC
http://dx.doi.org/10.3390/e24020265DOI Listing

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