Physics – Quantum Physics
Scientific paper
2010-07-09
Phys. Rev. D 82, 045030 (2010)
Physics
Quantum Physics
revtex4, 7 figures, I.F. previously published as Fuentes-Guridi and Fuentes-Schuller. Journal reference updated
Scientific paper
10.1103/PhysRevD.82.045030
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.
Fuentes Ivette
Mann Robert B.
Martin-Martinez Eduardo
Moradi Shahpoor
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