Entanglement entropy and Fisher information metric for closed bosonic strings in homogeneous plane wave background

Abstract

We derive the extended renormalized entanglement entropy (EREE) and the Fisher information metric in the case of closed bosonic strings in homogeneous plane wave background. Our investigations are conducted within the framework of Thermo Field Dynamics (TFD). The formalism is also illustrated on the example of some particular models in condensed matter physics and the non-equilibrium case for system with dissipations.

arXiv comment24 pages, 10 figures

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• Information geometry in quantum field theory: lessons from simple examples
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• Information Geometry on the Space of Equilibrium States of Black Holes in Higher Derivative Theories
• Informational properties of holographic Lifshitz field theory
• Time dependent Entanglement Entropy in dissipative conformal theories: TFD approach
• Holographic Fisher Information Metric in Schrödinger Spacetime