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The quantum decay of a relativistic scalar field from a metastable state ("false vacuum decay") is a fundamental idea in quantum field theory and cosmology. This occurs via local formation of bubbles of true vacuum with their subsequent…

Using first-principle lattice simulations, we demonstrate that in the background of a strong magnetic field (around $10^{20}$ T), the electroweak sector of the vacuum experiences two consecutive crossover transitions associated with…

High Energy Physics - Lattice · Physics 2023-12-19 M. N. Chernodub , V. A. Goy , A. V. Molochkov

We have simulated binary collisions between atoms in optical lattices during Sisyphus cooling. Our Monte Carlo Wave Function simulations show that the collisions selectively accelerate mainly the hotter atoms in the thermal ensemble, and…

Atomic Physics · Physics 2009-11-06 J. Piilo , K. -A. Suominen , K. Berg-Sorensen

This is the third paper in a series establishing a quantitative relation between inflationary scalar field potential landscapes and the relic perturbations left by the collision between bubbles produced during eternal inflation. We…

High Energy Physics - Theory · Physics 2017-02-13 Matthew C. Johnson , Carroll L. Wainwright , Anthony Aguirre , Hiranya V. Peiris

We study the imprints of new ultralight particles on the gravitational-wave signals emitted by binary black holes. Superradiant instabilities may create large clouds of scalar or vector fields around rotating black holes. The presence of a…

General Relativity and Quantum Cosmology · Physics 2020-04-22 Daniel Baumann , Horng Sheng Chia , Rafael A. Porto , John Stout

We describe the methods and results of numerical simulations of coalescing black holes. The simulation in dynamical spacetime covers the inspiral, merger, and ringdown phases. We analyze the emission of gravitational waves and properties of…

High Energy Astrophysical Phenomena · Physics 2016-05-20 Agnieszka Janiuk , Szymon Charzynski

A line of first-order phase transitions is conjectured in the phase diagram of Quantum Chromodynamics at non-zero baryon density. If this is the case, numerical simulations of neutron star mergers suggest that various regions of the stars…

High Energy Physics - Theory · Physics 2024-12-13 Yago Bea , Mauro Giliberti , David Mateos , Mikel Sanchez-Garitaonandia , Alexandre Serantes , Miguel Zilhão

We numerically study the dynamics of false vacuum bubbles which are inside an almost flat background; we assumed spherical symmetry and the size of the bubble is smaller than the size of the background horizon. According to the thin shell…

General Relativity and Quantum Cosmology · Physics 2010-04-30 Jakob Hansen , Dong-il Hwang , Dong-han Yeom

Quasi-conformal models are an appealing scenario that can offer naturally a strongly supercooled phase transition and a period of thermal inflation in the early Universe. A crucial aspect for the viability of these models is how the…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-14 Marek Lewicki , Oriol Pujolàs , Ville Vaskonen

Several recent studies have investigated the dynamics of cold atoms in optical lattices subject to AC forcing; the theoretically predicted renormalization of the tunneling amplitudes has been verified experimentally. Recent observations…

Quantum Gases · Physics 2011-05-26 K. Kudo , T. S. Monteiro

False-vacuum decay between two morphologically distinct supersolid phases via bubble nucleation is studied in a uniform dipolar gas confined to the plane. Starting from a metastable honeycomb state, the formation of stripe phase domains is…

Quantum Gases · Physics 2026-04-14 Wyatt Kirkby , Lauriane Chomaz , Thomas Gasenzer

Inspired by the idea that the cosmological constant can be considered as a dynamical quantity, we present a scenario bridging certain swampland conjectures from a new look at thermodynamics of black holes. Dealing with the radial metric…

High Energy Physics - Theory · Physics 2026-05-25 Saad Eddine Baddis , Adil Belhaj , Hajar Belmahi , Salah Eddine Ennadif

Two-leg bosonic ladders with flux harbor a remarkable vortex-hole duality between the weak-coupling vortex lattice superfluids and strong-coupling charge-density-wave crystals. The strong-coupling crystalline states, which are realized in…

Quantum Gases · Physics 2017-08-23 S. Greschner , T. Vekua

Particle-like topological structures such as skyrmions and vortices have garnered ever-increasing interests due to the rich physical insights and potential broad applications. Here we discover the reversible switching between polar skyrmion…

Mesoscale and Nanoscale Physics · Physics 2018-05-01 Zijian Hong , Long-Qing Chen

The nucleation and evolution of bubbles are investigated in the model of an $O(3)$-symmetric scalar field coupled to gravity in the high temperature limit. It is shown that, in addition to the well-known bubble of which the inside region is…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Yoonbai Kim , Kei-ichi Maeda , Nobuyuki Sakai

False vacuum states are metastable in quantum field theories, and true vacuum bubbles can be nucleated due to the quantum tunneling effect. It was recently suggested that an evaporating black hole (BH) can be a catalyst of bubble…

High Energy Physics - Theory · Physics 2017-11-22 Kyohei Mukaida , Masaki Yamada

Ultracold Bose gases are many-body systems with well-defined particle interactions that may serve as models for interacting quantum fields. The impact of virtual excitations is studied in the spatial transition zone created by a soft…

Quantum Gases · Physics 2025-05-22 Carsten Henkel

The decay of metastable 'false vacuum' states via bubble nucleation plays a crucial role in many cosmological scenarios. Cold-atom analog experiments will soon provide the first empirical probes of this process, with potentially…

Quantum Gases · Physics 2025-08-20 Alexander C. Jenkins , Hiranya V. Peiris , Andrew Pontzen

Metastable `false' vacuum states are an important feature of the Standard Model of particle physics and many theories beyond it. Describing the dynamics of a phase transition out of a false vacuum via the nucleation of bubbles is essential…

High Energy Physics - Theory · Physics 2024-11-19 Dalila Pîrvu , Matthew C. Johnson , Sergey Sibiryakov

In this Letter, we numerically present the possibility of the first-order phase transition occurring through the thermal fluctuation in the early universe. We find that when the temperature is slightly higher than the mass scale of the…

High Energy Physics - Phenomenology · Physics 2025-05-22 Ligong Bian , Yuefeng Di , Yongtao Jia , Yang Li , Kehao Zeng
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