March 4, 2024Open Access

Entanglement and Rényi entropies of (1+1)-dimensional O(3) nonlinear sigma model with tensor renormalization group

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Abstract

A bstract We investigate the entanglement and Rényi entropies for the (1+1)-dimensional O(3) nonlinear sigma model using the tensor renormalization group method. The central charge is determined from the asymptotic scaling properties of both entropies. We also examine the consistency between the entanglement entropy and the n th-order Rényi entropy with n → 1.

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Luo et al. (Mon,) studied this question.

synapsesocial.com/papers/68e75ca9b6db6435876d403f https://doi.org/https://doi.org/10.1007/jhep03(2024)020

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