Working Paper Article Version 2 This version is not peer-reviewed

Cosmological Constant as a Finite Temperature Effect

Version 1 : Received: 4 January 2021 / Approved: 5 January 2021 / Online: 5 January 2021 (15:14:28 CET)
Version 2 : Received: 7 January 2021 / Approved: 8 January 2021 / Online: 8 January 2021 (14:26:20 CET)

How to cite: Park, I. Cosmological Constant as a Finite Temperature Effect. Preprints 2021, 2021010100 Park, I. Cosmological Constant as a Finite Temperature Effect. Preprints 2021, 2021010100

Abstract

The cosmological constant problem is examined by taking an Einstein--scalar with a Higgs-type potential and scrutinizing the infrared structure induced by finite temperature effects. A variant optimal perturbation theory is implemented in the recently proposed quantum-gravitational framework. The optimized renormalized mass, i.e., the renormalized mass determined by the variant optimal perturbation theory, of the scalar field turns out to be on the order of the temperature. This shifts the cosmological constant problem to compatibility of the consequent perturbative analysis. The compatibility is guaranteed essentially by renormalization group invariance of physical quantities. We point out the resummation behind the invariance.

Subject Areas

cosmological constant; finite temperature; quantum gravity

Comments (1)

Comment 1
Received: 8 January 2021
Commenter: inyong park
Commenter's Conflict of Interests: Author
Comment: References and associated comments have been added.
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