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We present experimental evidence for a first-order freezing/melting phase transition in a nonequilibrium system -- an oscillated two-dimensional isobaric granular fluid. The steady-state transition occurs between a gas and a crystal and is…

Soft Condensed Matter · Physics 2007-05-23 M. D. Shattuck

The dynamics of the electroweak phase transition in the early universe has profound implications for cosmology and particle physics. We systematically study the steady-state dynamics of bubble walls in scenarios where the transition is…

High Energy Physics - Phenomenology · Physics 2025-08-07 Carlo Branchina , Angela Conaci , Stefania De Curtis , Luigi Delle Rose

Topological states of matter are characterized by global topological invariants which change their value across a topological quantum phase transition. It is commonly assumed that the transition between topologically distinct noninteracting…

Mesoscale and Nanoscale Physics · Physics 2017-04-19 Vladimir Juricic , D. S. L. Abergel , A. V. Balatsky

We study the dynamics of confinement-deconfinement (C-D) phase transition in the context of relativistic heavy-ion collisions within the framework of effective models for the Polyakov loop order parameter. We study the formation of $Z(3)$…

High Energy Physics - Phenomenology · Physics 2010-10-27 Uma Shankar Gupta , Ranjita K. Mohapatra , Ajit M. Srivastava , Vivek K. Tiwari

We present a consistent calculation of bubble-nucleation rates in theories of two scalar fields. Our approach is based on the notion of a coarse-grained free energy that incorporates the effects of fluctuations with momenta above a given…

High Energy Physics - Phenomenology · Physics 2009-10-09 Alessandro Strumia , Nikolaos Tetradis

In this proceedings contribution we discuss the fate of the electroweak and the quantum chromodynamics phase transitions relevant for the early stage of the universe at non-zero temperature. These phase transitions are related to the Higgs…

High Energy Physics - Lattice · Physics 2015-06-03 Karl Jansen

We study the hydrodynamics of bubble expansion in cosmological first-order phase transition in the Friedmann-Lema\^{\i}tre-Robertson-Walker (FLRW) background with probe limit. Different from previous studies for fast first-order phase…

General Relativity and Quantum Cosmology · Physics 2018-04-25 Rong-Gen Cai , Shao-Jiang Wang

A granular system confined in a quasi two-dimensional box that is vertically vibrated can transit to an absorbing state in which all particles bounce vertically in phase with the box, with no horizontal motion. In principle, this state can…

Statistical Mechanics · Physics 2015-06-18 Baptiste Néel , Ignacio Rondini , Alex Turzillo , Nicolás Mujica , Rodrigo Soto

We analyze the effect of primordial density perturbations on the cosmic QCD phase transition. According to our results hadron bubbles nucleate at the cold perturbations. We call this mechanism inhomogeneous nucleation. We find the typical…

Astrophysics · Physics 2007-05-23 J. Ignatius , Dominik J. Schwarz

We investigate a novel mechanism for phase transitions that is a distinctive feature of higher-curvature gravity theories. For definiteness, we bound ourselves to the case of Lovelock gravities. These theories are known to have several…

High Energy Physics - Theory · Physics 2014-09-24 Xian O. Camanho , Jose D. Edelstein , Gaston Giribet , Andres Gomberoff

We describe a new mechanism of dark matter production in the early Universe, based on the dynamics of a first order phase transition. We assume that dark matter particles acquire mass during the phase transition, making it energetically…

High Energy Physics - Phenomenology · Physics 2020-10-14 Michael J. Baker , Joachim Kopp , Andrew J. Long

The vacuum decay in the early Universe should be gauge-invariant. In this work, we study the gauge dependence of the vacuum decay occurring through a first-order phase transition and the associated gravitational wave production. We…

High Energy Physics - Phenomenology · Physics 2026-01-12 Jie Liu , Renhui Qin , Ligong Bian

We study a $U(N)\times U(N)$ symmetric scalar field model in four and three dimensions. First, using our data in four dimensions in the weak coupling region, we demonstrate explicitly that the observed first order phase transition is…

High Energy Physics - Lattice · Physics 2009-10-22 Yue Shen

It was shown that in the canonical ensemble the simple exactly soluble statistical model of nuclei decay into nucleons, which is a limiting case of the statistical multifragmentation model, predicts the nuclear first order phase transition…

Nuclear Theory · Physics 2012-06-29 A. S. Parvan

We study the subcritical bubble formation near the phase space domain wall. We take into account that the phase of the scalar field can vary using complex U(1) symmetric field and a phenomenological potential with cubic term responsible to…

High Energy Physics - Phenomenology · Physics 2009-10-28 J. Sirkka , I. Vilja

First order phase transitions are violent phenomena that occur when the state of the universe evolves abruptly from one vacuum to another. A \emph{direct} phase transition connects a local vacuum to a deeper vacuum of the zero--temperature…

High Energy Physics - Phenomenology · Physics 2024-10-29 Giulio Barni , Simone Blasi , Miguel Vanvlasselaer

We perform a state-of-the-art global study of the cosmological thermal histories of a simple Yukawa model, and find higher perturbative orders to be important for determining both the presence and strength of strong first-order phase…

High Energy Physics - Phenomenology · Physics 2023-10-05 Oliver Gould , Cheng Xie

Placing a high-Tc superconductor in an increasing external magnetic field, the flux first penetrates the sample through an Abrikosov vortex lattice, and then a first order transition is observed by which the system goes to the normal phase.…

High Energy Physics - Phenomenology · Physics 2016-11-03 M. Laine

We study the electroweak phase transition in the minimal extension of the Standard Model: an extra complex singlet with zero vacuum expectation value. The first-order phase transition is strengthened by the cubic term triggered in the…

High Energy Physics - Phenomenology · Physics 2009-10-22 J. R. Espinosa , M. Quirós

We present a new method for calculating the bubble nucleation rate in first order phase transitions non-perturbatively on the lattice. The method takes into account all fluctuations and the full dynamical pre-factor. We also present results…

High Energy Physics - Lattice · Physics 2007-05-23 Guy D. Moore , Kari Rummukainen , Anders Tranberg