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February 26, 2026Journal of High Energy Physics0 citationsOpen Access

Entanglement Hamiltonian for Massless Dirac Field in Inhomogeneous Background

Entanglement Hamiltonian for the massless Dirac field on a segment with an inhomogeneous background

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Authors

ETErik TonniSTStefano Trezzi

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Overview

The study demonstrates the entanglement Hamiltonian for the Dirac field in an interval, suggesting significant insights into quantum phenomena.

Key Points

  • The aim is to analyze the entanglement Hamiltonian of the massless Dirac field in an inhomogeneous background and its implications on entanglement entropy.
  • Investigated the entanglement Hamiltonian for a finite segment of the massless Dirac field.
  • Considered Weyl equivalent metrics that depend on the spatial coordinate.
  • Derived the explicit form of the entanglement Hamiltonian, including local and bilocal terms.
  • Compared analytic expressions with numerical results from lattice calculations.
  • The explicit form of the entanglement Hamiltonian consists of local and bilocal components.
  • The weight function of the local term facilitates the study of entanglement entropies.
  • Analytic results align closely with numerical results, indicating robust findings.
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Cite This Study

Tonni et al. (2026) studied this question.

synapsesocial.com/papers/699fe3f995ddcd3a253e8251https://doi.org/10.1007/jhep02(2026)224
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