Indirect detection of Cosmological Constant from interacting open quantum system

• URL: http://arxiv.org/abs/2004.13058v5
• Date: Wed, 1 Jun 2022 05:51:14 GMT
• Title: Indirect detection of Cosmological Constant from interacting open quantum system
• Authors: Subhashish Banerjee, Sayantan Choudhury, Satyaki Chowdhury, Rathindra Nath Das, Nitin Gupta, Sudhakar Panda, Abinash Swain
• Abstract summary: We study the indirect detection of Cosmological Constant from an open quantum system of interacting spins. We construct states using a generalisation of the superposition principle. The corresponding spectroscopic shifts are seen to play a crucial role in predicting a very tiny value of the Cosmological Constant.
• Score: 1.3456412091502525
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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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