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Indirect detection of Cosmological Constant from interacting open quantum system

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arxiv 2004.13058 v5 pith:N7ZNWURI submitted 2020-04-27 hep-th cond-mat.stat-mechgr-qchep-phquant-ph

Subhashish Banerjee , Sayantan Choudhury , Satyaki Chowdhury , Rathindra Nath Das , Nitin Gupta , Sudhakar Panda , Abinash Swain This is my paper · ORCID
classification hep-thcond-mat.stat-mechgr-qchep-phquant-ph
keywords constantcosmologicalinteractingsystembackgrounddetectionindirectinteraction
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We study the indirect detection of Cosmological Constant from an open quantum system of interacting spins, weakly interacting with a thermal bath, a massless scalar field minimally coupled with the static de Sitter background, by computing the spectroscopic shifts. By assuming pairwise interaction between spins, we construct states using a generalisation of the superposition principle. The corresponding spectroscopic shifts, caused by the effective Hamiltonian of the system due to Casimir Polder interaction, are seen to play a crucial role in predicting a very tiny value of the Cosmological Constant, in the static patch of de Sitter space, which is consistent with the observed value from the Planck measurements of the cosmic microwave background (CMB) anisotropies.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Open Quantum Entanglement: A study of two atomic system in static patch of de Sitter space

    hep-th 2019-08 reject novelty 5.0 of 10

    Using a two-atom open quantum system in de Sitter space, the authors claim to derive analytic entanglement dynamics and Bell inequality violation, but the derivation rests on an ad hoc imaginary-frequency condition.

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