Results 41 to 50 of about 121,587 (192)

Non-linearities in cosmological bubble wall dynamics

open access: yesJournal of High Energy Physics
A precise modelling of the dynamics of bubbles nucleated during first-order phase transitions in the early Universe is pivotal for a quantitative determination of various cosmic relics, including the stochastic background of gravitational waves.
Stefania De Curtis   +4 more
doaj   +1 more source

Cosmology with the Laser Interferometer Space Antenna

open access: yesLiving Reviews in Relativity, 2023
The Laser Interferometer Space Antenna (LISA) has two scientific objectives of cosmological focus: to probe the expansion rate of the universe, and to understand stochastic gravitational-wave backgrounds and their implications for early universe and ...
Pierre Auclair   +181 more
doaj   +1 more source

Lectures on Holographic Space Time [PDF]

open access: yes, 2013
Summary of three talks on the Holographic Space Time models of early universe cosmology, particle physics, and the asymptotically de Sitter final state of our universe.Comment: LaTex2e.
Banks, T.
core  

Cosmic Magnetic Fields from Particle Physics [PDF]

open access: yes, 2000
I review a number of particle-physics models that lead to the creation of magnetic fields in the early universe and address the complex problem of evolving such primordial magnetic fields into the fields observed today.
Tornkvist, Ola
core   +2 more sources

Thermalization effects on the dynamics of growing vacuum bubbles

open access: yesJournal of High Energy Physics
We study the evolution of growing vacuum bubbles. The bubble walls interact with the surrounding fluid and may, consequently, reach a terminal velocity.
Tomasz Krajewski   +5 more
doaj   +1 more source

Scalar field couplings to quadratic curvature and decay into gravitons

open access: yesJournal of High Energy Physics, 2022
Any field, even if it lives in a completely hidden sector, interacts with the visible sector at least via the gravitational interaction. In this paper, we show that a scalar field in such a hidden sector generically couples to the quadratic curvature via
Yohei Ema   +2 more
doaj   +1 more source

What happens when supercooling is terminated by curvature flipping of the effective potential?

open access: yesJournal of High Energy Physics
We explore the nature of a certain type of supercooled phase transition, where the supercooling is guaranteed to end due to the curvature of the finite-temperature effective potential at the origin experiencing a sign flip at some temperature.
Tomasz P. Dutka   +2 more
doaj   +1 more source

New and Improved Superstring Phenomenology [PDF]

open access: yes, 1999
Recent developments in string theory have important implications for cosmology. Topics discussed here are inflation, the cosmological constant, smoothing of cosmological singularities, and dark matter from parallel universes.
Lykken, Joseph D.
core   +3 more sources

Type-III seesaw in non-holomorphic modular symmetry and leptogenesis

open access: yesJournal of High Energy Physics
Recently, Qu and Ding, have proposed a formalism where modular invariance is extended to non-supersymmetric scenario considering Yukawa couplings as non-holomorphic functions of modules field τ. Adopting this formalism in this work, we propose a Type-III
Priya   +3 more
doaj   +1 more source

Do internal symmetries get restored in hot and dense SUSY? [PDF]

open access: yes, 1998
I offer some computational details and useful and concise formulae to calculate the effective potential for a general abelian supersymmetric model at high temperature and density.
Bajc, Borut
core   +2 more sources

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