Probing new physics with multi-vacua quantum tunnelings beyond standard model through gravitational waves

Zihan Zhou; Jun Yan; Andrea Addazi; Yi-Fu Cai; Antonino Marciano; Roman Pasechnik

Physics Letters B (Jan 2021)

Probing new physics with multi-vacua quantum tunnelings beyond standard model through gravitational waves

Zihan Zhou,
Jun Yan,
Andrea Addazi,
Yi-Fu Cai,
Antonino Marciano,
Roman Pasechnik

Affiliations

Zihan Zhou: Department of Astronomy, School of Physical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China; CAS Key Laboratory for Researches in Galaxies and Cosmology, University of Science and Technology of China, Hefei, Anhui 230026, China; School of Astronomy and Space Science, University of Science and Technology of China, Hefei, Anhui 230026, China
Jun Yan: Department of Astronomy, School of Physical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China; CAS Key Laboratory for Researches in Galaxies and Cosmology, University of Science and Technology of China, Hefei, Anhui 230026, China; School of Astronomy and Space Science, University of Science and Technology of China, Hefei, Anhui 230026, China
Andrea Addazi: Center for Theoretical Physics, College of Physics Science and Technology, Sichuan University, 610065 Chengdu, China; INFN sezione Roma Tor Vergata, I-00133 Rome, Italy
Yi-Fu Cai: Department of Astronomy, School of Physical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China; CAS Key Laboratory for Researches in Galaxies and Cosmology, University of Science and Technology of China, Hefei, Anhui 230026, China; School of Astronomy and Space Science, University of Science and Technology of China, Hefei, Anhui 230026, China; Corresponding author.
Antonino Marciano: Department of Physics & Center for Field Theory and Particle Physics, Fudan University, Shanghai 200433, China; Laboratori Nazionali di Frascati INFN, Frascati (Rome), Italy
Roman Pasechnik: Department of Astronomy and Theoretical Physics, Lund University, 221 00 Lund, Sweden

Journal volume & issue: Vol. 812
p. 136026

Abstract

Read online

We report on a novel phenomenon of particle cosmology, which features specific cosmological phase transitions via quantum tunnelings through multiple vacua. The latter is inspired by the axiverse ideas, and enables to probe the associated new physics models through a potential observation of specific patterns in the stochastic gravitational waves background. Multiple vacua may induce the nucleation of co-existing bubbles over the phase transition epoch, hence enhancing the overall process of bubbles' nucleation. Our detailed analysis of semi-analytical and numerical solutions to the bounce equations of the path integral in three vacua case has enabled us to determine the existence of three instanton solutions. This new mechanism of cosmological phase transitions clearly predicts a possibly sizeable new source of gravitational waves, with its energy spectrum being featured with particular patterns, which could be probed by the future gravitational wave interferometers.

Published in Physics Letters B

ISSN: 0370-2693 (Print); 1873-2445 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/physics-letters-b/

About the journal