Correlation Functions from Quantum Cluster Algorithms: Application to U(1) Quantum Spin and Quantum Link Models
A. Tsapalis
Abstract
We demonstrate how correlation functions for non-diagonal operators can be measured with the loop-cluster algorithm for quantum spin models. We introduce the U(1) quantum link model and present the construction of a cluster algorithm for the model. We further show how an improved estimator for Wilson loops can be realized with the flux-cluster algorithm.
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