Canonical formulation and path integral for local vacuum energy sequestering

Show full item record



Permalink

http://hdl.handle.net/10138/174053

Citation

Bufalo , R , Kluson , J & Oksanen , M 2016 , ' Canonical formulation and path integral for local vacuum energy sequestering ' , Physical Review D , vol. 94 , no. 4 , 044005 . https://doi.org/10.1103/PhysRevD.94.044005

Title: Canonical formulation and path integral for local vacuum energy sequestering
Author: Bufalo, R.; Kluson, J.; Oksanen, M.
Contributor: University of Helsinki, Department of Physics
Date: 2016-08-04
Language: eng
Number of pages: 19
Belongs to series: Physical Review D
ISSN: 2470-0010
URI: http://hdl.handle.net/10138/174053
Abstract: We establish the Hamiltonian analysis and the canonical path integral for a local formulation of vacuum energy sequestering. In particular, by considering the state of the Universe as a superposition of vacuum states corresponding to different values of the cosmological and gravitational constants, the path integral is extended to include integrations over the cosmological and gravitational constants. The result is an extension of the Ng-van Dam form of the path integral of unimodular gravity. It is argued to imply a relation between the fraction of the most likely values of the gravitational and cosmological constants and the average values of the energy density and pressure of matter over spacetime. Finally, we construct and analyze a Becchi-Rouet-Stora-Tyutin-exact formulation of the theory, which can be considered as a topological field theory.
Subject: COSMOLOGICAL-CONSTANT PROBLEM
QUANTUM-FIELD THEORY
UNIMODULAR GRAVITY
EINSTEIN GRAVITY
114 Physical sciences
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
PhysRevD.94.044005.pdf 283.7Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record