Volume 141, Number 1, January 2023
|Number of page(s)||4|
|Section||Gravitation, cosmology and astrophysics|
|Published online||04 January 2023|
Estimating today's cosmological constant via the Zel'dovich-holographic connection
1 CERN - Geneva, Switzerland
2 Istituto per le Applicazioni del Calcolo “M. Picone”, CNR - I-00185 Rome, Italy
3 INFN, Sezione di Roma Tre - I-00146 Rome, Italy
4 Institute for Systems Biology - Seattle, WA 98109, USA
5 Istituto Italiano di Tecnologia - 00161 Rome, Italy
6 Physics Department, Harvard University - Cambridge, MA, USA
(a) E-mail: email@example.com (corresponding author)
Received: 27 August 2022
Accepted: 22 December 2022
This letter proposes an approach to the vacuum energy and the cosmological constant (CC) paradox based on the Zel’dovich's ansatz, which states that the observable contribution to the vacuum energy density is given by the gravitational energy of virtual particle-antiparticle pairs, continually generated and annihilated in the vacuum state. The novelty of this work is the use of an ultraviolet cut-off length based on the holographic principle, which is shown to yield current values of the CC in semi-quantitative agreement with experimental observations.
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