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A gauge-invariant framework for computing bubble nucleation rates at finite temperature in the presence of radiative barriers was presented and advocated for model-building and phenomenological studies in an accompanying article…

High Energy Physics - Phenomenology · Physics 2022-08-10 Joonas Hirvonen , Johan Löfgren , Michael J. Ramsey-Musolf , Philipp Schicho , Tuomas V. I. Tenkanen

We consider a system of equations for the description of nonlinear waves in a liquid with gas bubbles. Taking into account high order terms with respect to a small parameter, we derive a new nonlinear partial differential equation for the…

Pattern Formation and Solitons · Physics 2017-02-14 Nikolay A. Kudryashov , Dmitry I. Sinelshchikov , Alexander K. Volkov

We predict a scheme for the creation of isotropic three-dimensional droplets in Rydbeg-dressed Bose gases, which contain both repulsive contact interactions and attractive van der Waals interactions causing the quantum fluctuation effect…

Quantum Gases · Physics 2023-06-05 Hao Zhu , Yong-Yao Li , Wen-Kai Bai , Yan-Mei Yu , Lin Zhuang , Wu-Ming Liu

The nucleation of vapor bubbles within a superheated fluid is studied using density functional theory. The nudged elastic band technique is used to find the minimum energy pathway from the metastable uniform liquid to the stable uniform gas…

Statistical Mechanics · Physics 2008-08-20 James F. Lutsko

Using the Surface Evolver software, we perform numerical simulations of point-like deformations in a two-dimensional foam. We study perturbations which are infinitesimal or finite, isotropic or anisotropic, and we either conserve or do not…

Soft Condensed Matter · Physics 2008-12-18 Simon Cox , François Graner , M. F. Vaz

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

Numerical relativity is finally approaching a state where the evolution of rather general (3+1)-dimensional data sets can be computed in order to solve the Einstein equations. After a general introduction, three topics of current interest…

General Relativity and Quantum Cosmology · Physics 2017-09-27 Bernd Bruegmann

We study the process of black brane evaporation through the emission of D-branes. Gravitational solutions describing black branes in asymptotically anti-de Sitter spacetimes, which are holographically dual to field theory states at finite…

High Energy Physics - Theory · Physics 2022-02-22 Oscar Henriksson

The bubble nuclei are important components of exotic nuclear structures characterized by special depletions of central densities. Focusing on bubble structures of $^{36}$Ar, the characterizations of bubble nuclei were explored with the…

Nuclear Theory · Physics 2024-08-27 Ge Ren , Chun-Wang Ma , Xi-Guang Cao , Yu-Gang Ma

In this paper we show that the solution of the discrete Double Bubble problem over $\mathbb{Z}^2$ is at most the ceiling function plus two of the continuous solution to the Double Bubble problem, with respect to the $\ell^1$ norm, found in…

Metric Geometry · Mathematics 2021-09-27 Parker Duncan , Rory O'Dwyer , Eviatar B. Procaccia

.The physical properties of an ensemble of tightly packed particles like bubbles, drops or solid grains are controlled by their interactions. For the case of bubbles and drops it has recently been shown theoretically and computationally…

Soft Condensed Matter · Physics 2019-10-23 Gaël Ginot , Reinhard Höhler , Sandrine Mariot , Andy Kraynik , Wiebke Drenckhan

Nonlinear waves are studied in a mixture of liquid and gas bubbles. Influence of viscosity and heat transfer is taken into consideration on propagation of the pressure waves. Nonlinear evolution equations of the second and the third order…

Exactly Solvable and Integrable Systems · Physics 2011-12-23 Maria V. Demina , Nikolay A. Kudryashov

[Abridged]We present high-resolution three-dimensional direct numerical simulations of breaking waves solving the two-phase Navier-Stokes equations. We investigate the role of the Reynolds and Bond numbers on the energy, bubble and droplet…

Fluid Dynamics · Physics 2022-06-08 Wouter Mostert , Stéphane Popinet , Luc Deike

Recent high resolution observations of Galactic superbubbles have motivated us to re-examine several classes of superbubble models. We compare three classes of hydrodynamic models (the Kompaneets approximation, the thin shell model, and…

Astrophysics · Physics 2007-05-23 Philip T. Komljenovic , Shantanu Basu , Doug Johnstone

The purpose of this paper is to discuss a generalization of the bubble transform to differential forms. The bubble transform was discussed in a previous paper by the authors for scalar valued functions, or zero-forms, and represents a new…

Numerical Analysis · Mathematics 2022-02-08 Richard S. Falk , Ragnar Winther

We consider the anisotropic evolution of spatial dimensions and the stabilization of internal dimensions in the framework of brane gas cosmology. We observe that the bulk RR field can give an effective potential which prevents the internal…

High Energy Physics - Theory · Physics 2008-11-26 Jin Young Kim

We study the possible types of the nucleation of vacuum bubbles. We classify vacuum bubbles in de Sitter background and present some numerical solutions. The thin-wall approximation is employed to obtain the nucleation rate and the radius…

High Energy Physics - Theory · Physics 2010-01-27 Bum-Hoon Lee , Wonwoo Lee

We establish the Gaussian Multi-Bubble Conjecture: the least Gaussian-weighted perimeter way to decompose $\mathbb{R}^n$ into $q$ cells of prescribed (positive) Gaussian measure when $2 \leq q \leq n+1$, is to use a "simplicial cluster",…

Differential Geometry · Mathematics 2021-12-02 Emanuel Milman , Joe Neeman

Recently, the existence of so-called granular bubbles and droplets has been demonstrated experimentally. Granular bubbles and droplets are clusters of particles that respectively rise and sink if submerged in an aerated and vibrated bed of…

Soft Condensed Matter · Physics 2022-08-10 Jens P. Metzger , Louis Girardin , Nicholas A. Conzelmann , Christoph R. Müller

We consider the supercritical Lane-Emden problem $$(P_\eps)\qquad -\Delta v= |v|^{p_\eps-1} v \ \hbox{in}\ \mathcal{A} ,\quad u=0\ \hbox{on}\ \partial\mathcal{A} $$ where $\mathcal A$ is an annulus in $\rr^{2m},$ $m\ge2$ and…

Analysis of PDEs · Mathematics 2013-02-13 Filomena Pacella , Angela Pistoia
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