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  Indirect detection of Cosmological Constant from large $N$ entangled open quantum system

Banerjee, S., Choudhury, S., Chowdhury, S., Das, R. N., Gupta, N., Panda, S., et al. (in preparation). Indirect detection of Cosmological Constant from large $N$ entangled open quantum system.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-700B-0 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-700E-D
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2004.13058.pdf (Preprint), 752KB
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 Creators:
Banerjee, Subhashish, Author
Choudhury, Sayantan1, Author              
Chowdhury, Satyaki, Author
Das, Rathindra Nath, Author
Gupta, Nitin, Author
Panda, Sudhakar, Author
Swain, Abinash, Author
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: High Energy Physics - Theory, hep-th, Condensed Matter, Statistical Mechanics, cond-mat.stat-mech,General Relativity and Quantum Cosmology, gr-qc,High Energy Physics - Phenomenology, hep-ph,Quantum Physics, quant-ph
 Abstract: In this letter, we study the indirect detection of {\it Cosmological Constant} from an {\it open quantum system} of $N$ entangled 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 entanglement between spins, we construct entangled $N$ states using a generalisation of the superposition principle. We have found that in the realistic large $N$ limit, where the system consists of $N\sim{\cal O}(10^3-10^4)$ spins, the corresponding spectroscopic shifts, caused by the effective Hamiltonian of the system due to Casimir Polder interaction with the bath, play a crucial role to determine the observationally consistent Cosmological Constant, $\Lambda\sim {\cal O}(10^{-122})$ (Planckian units) in the static patch of De Sitter space.

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 Dates: 2020-04-272020-05-16
 Publication Status: Not specified
 Pages: 4 pages + 5 figures+ 1 page references + 12 pages supplementary material, This project is the part of the non-profit virtual international research consortium "Quantum Structures of the Space-Time & Matter (QASTM)", Updated version
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 2004.13058
URI: http://arxiv.org/abs/2004.13058
 Degree: -

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