Conformal symmetry and the cosmological constant problem

Autor:	Lucat, Stefano, Prokopec, Tomislav, Swiezewska, Bogumila
Rok vydání:	2018
Předmět:	General Relativity and Quantum Cosmology Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Theory
Zdroj:	Int. J. Mod. Phys. D 27 (2018) 1847014
Druh dokumentu:	Working Paper
DOI:	10.1142/S0218271818470144
Popis:	We argue that, when a theory of gravity and matter is endowed with (classical) conformal symmetry, the fine tuning required to obtain the cosmological constant at its observed value can be significantly reduced. Once tuned, the cosmological constant is stable under a change of the scale at which it is measured. Comment: 8 pages, this essay received an Honorable Mention in the 2018 Essay Competition of the Gravity Research Foundation, v2: references updated, matches published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1804.00926 Zobrazit plný text záznamu View this record from Arxiv