The Hanbury-Brown and Twiss effect in inflationary cosmological perturbations

Autor:	Gauy, Gustavo Matheus, Sobreira, Flavia, Torrieri, Giorgio
Rok vydání:	2024
Předmět:	General Relativity and Quantum Cosmology Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	The simplest model of inflation is based around an inflaton field that starts in a coherent false vacuum state with a positive cosmological constant, rolls slowly to the true vacuum and relaxes to it via reheating. We examine whether the scale of the transition from coherence to chaoticity can be examined via the Hanbury-Brown and Twiss (HBT) effect, in parallel with analogous problems of heavy ion physics (the ``pion laser'' and the thermalizing glasma). We develop an ansatz which contains a definition of ''chaoticity'' which parallels that of the usual setups where HBT is used. However, we also discuss the differences between the inflationary setup and more mainstream uses of HBT and conclude that these are more significant than the similarities, making the use of the developed methodology uncertain. Comment: Version accepted for publication,Phys.Rev.D
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2406.13082 Zobrazit plný text záznamu View this record from Arxiv