准周期玻色子多体相的带状估计
Zonal estimators for quasiperiodic bosonic many-body phases
摘要：
在这项工作中，我们探讨了相关的方法研究相互作用系统的接触相互作用，我们介绍了一类带状估计的路径积分Monte Carlo方法，旨在提供有关有限区域的非均匀系统的物理信息。我们证明了带状估计的有用性，通过他们的应用程序的系统中的一个陷阱玻色子在二维准周期势，集中在有限的温度特性在一个广泛的价值观的潜力。最后，我们评论这样的估计局部波动的粒子数和磁有序的多组分系统，自旋系统和系统的非局部相互作用的推广。
英文摘要：
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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