Measurement of entanglement entropy in the two-dimensional Potts model using wavelet analysis.
basic_science · Level V
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- Record sourced from PubMed, PMID 29906832.
- Also identified by DOI 10.1103/PhysRevE.97.052128.
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Abstract
A method is introduced to measure the entanglement entropy using a wavelet analysis. Using this method, the two-dimensional Haar wavelet transform of a configuration of Fortuin-Kasteleyn (FK) clusters is performed. The configuration represents a direct snapshot of spin-spin correlations since spin degrees of freedom are traced out in FK representation. A snapshot of FK clusters loses image information at each coarse-graining process by the wavelet transform. It is shown that the loss of image information measures the entanglement entropy in the Potts model.