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Entanglement of Dirac fields in an expanding spacetime

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arxiv 1007.1569 v2 pith:GOBL2CLE submitted 2010-07-09 quant-ph gr-qc

I. Fuentes , R. B. Mann , E. Martin-Martinez , S. Moradi This is my paper · ORCID
classification quant-phgr-qc
keywords entanglementbosonicfermionicfieldsdiracexpansiongeneratedaccount
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We study the entanglement generated between Dirac modes in a 2-dimensional conformally flat Robertson-Walker universe. We find radical qualitative differences between the bosonic and fermionic entanglement generated by the expansion. The particular way in which fermionic fields get entangled encodes more information about the underlying space-time than the bosonic case, thereby allowing us to reconstruct the parameters of the history of the expansion. This highlights the importance of bosonic/fermionic statistics to account for relativistic effects on the entanglement of quantum fields.

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Cited by 2 Pith papers

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    Self-interactions in scalar and gauge theories suppress gravitational particle production in a quench modeling cosmic expansion, as computed with tensor networks.

  2. Delay-Independent Stability of Nonlinear Delay Differential Equations via Isospectral Reduction

    math.DS 2025-08 unverdicted novelty 5.0 of 10

    Claims a delay-independent global exponential stability criterion for a broad class of nonlinear nonautonomous delay differential equations using isospectral reduction of an associated sequence of matrices.

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