Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement entropy and Fisher information metric for closed bosonic
  strings in homogeneous plane wave background   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.

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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
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The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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The categories of this paper are: astro-ph
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The categories of this paper are: cs
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: supr-con