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Open Quantum Systems Decoherence Entanglement Theory Quantum Correlations

Spin-Particles Entanglement in Robertson-Walker Spacetime

arXiv
Authors: Shahpoor Moradi, Roberto Pierini, Stefano Mancini

Year

2013

Paper ID

32562

Status

Preprint

Abstract Read

~2 min

Abstract Words

106

Citations

N/A

Abstract

We study the entanglement between two modes of Dirac field in an expanding spacetime characterized by the Robertson-Walker metric. This spacetime model turns out to be asymptotically (in the remote past and far future regions) Minkowskian. Then, on the one hand we show entanglement creation between particles and anti-particles when passing from remote past to far future. On the other hand we show that particles entanglement in the remote past degrades into the far future. These effects are traced back to particles creation. In our analysis we highlight the role of spin (polarization) of particles and compare the results with those obtainable without accounting for it.

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  • We study the entanglement between two modes of Dirac field in an expanding spacetime characterized by the Robertson-Walker metric.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1309.6163 [2] arXiv https://arxiv.org/abs/1309.6163 [3] Publisher https://arxiv.org/abs/1309.6163

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