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We investigate the full 5D dynamics of general braneworld models. Without making any further assumptions we show that cyclic behavior can arise naturally in a fraction of physically accepted solutions. The model does not require brane…

High Energy Physics - Theory · Physics 2008-11-26 E. N. Saridakis

We present a comprehensive study of the cosmological solutions of 6D braneworld models with azimuthal symmetry in the extra dimensions, moduli stabilization by flux or a bulk scalar field, and which contain at least one 3-brane that could…

High Energy Physics - Theory · Physics 2009-11-10 James M. Cline , Julie Descheneau , Massimo Giovannini , Jérémie Vinet

A method for obtaining solutions to the classical equations for scalars plus gravity in five dimensions is applied to some recent suggestions for brane-world phenomenology. The method involves only first order differential equations. It is…

High Energy Physics - Theory · Physics 2009-10-08 O. DeWolfe , D. Z. Freedman , S. S. Gubser , A. Karch

We present a general formalism for studying an inflationary scenario in the two-brane system. We explain the gradient expansion method and obtain the 4-dimensional effective action. Based on this effective action, we give a basic equations…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Jiro Soda , Sugumi Kanno

We present a model with an infinite volume bulk in which a braneworld with a cosmological constant evolves to a static, 4-dimensional Minkowski spacetime. This evolution occurs for a generic class of initial conditions with positive energy…

High Energy Physics - Theory · Physics 2009-10-07 Cedric Deffayet , Gia Dvali , Gregory Gabadadze , Arthur Lue

The new class of the non-stationary solutions to the system of N-dimensional equations for coupled gravitational and massless scalar field is found. The model represents a single (N-1)-brane in a space-time with one large (infinite) and…

General Relativity and Quantum Cosmology · Physics 2014-03-05 Merab Gogberashvili , Pavle Midodashvili , Giorgi Tukhashvili

We provide an explicit example of a higher-dimensional model describing a non-supersymmetric spectrum of 4D particles of mass M, whose 4D geometry -- {\em including loop effects} -- has a curvature that is of order R ~ m_KK^4/M_p^2, where…

High Energy Physics - Theory · Physics 2013-08-28 C. P. Burgess , Leo van Nierop

Brane world scenarios offer a way of ensuring that a Poincare invariant four dimensional world can emerge, without fine tuning, as a solution to the equations of motion of an effective action. We discuss the different ways in which this…

High Energy Physics - Theory · Physics 2009-10-31 S. P. de Alwis

We develop a general algorithm that enables the consistent embedding of any four-dimensional static and spherically symmetric geometry into any five-dimensional single-brane braneworld model, characterized by an injective and nonsingular…

General Relativity and Quantum Cosmology · Physics 2024-02-23 Theodoros Nakas , Thomas D. Pappas , Zdeněk Stuchlík

An exact solution of brane universe is studied and the result indicates that Friedmann equations on the brane are modified with an extra term. This term can play the role of dark energy and make the universe accelerate. In order to derive…

High Energy Physics - Theory · Physics 2009-11-13 Yongli Ping , Lixin Xu , Baorong Chang , Molin Liu , Hongya Liu

In the braneworld scenario ordinary standard model matter and on-gravitational fields are confined by some trapping mechanism to the 4-dimensional universe constituting the D3-branes which are embedded in a (4 + n)-dimensional manifold…

General Relativity and Quantum Cosmology · Physics 2010-12-21 Sarbari Guha , Subenoy Chakraborty

Braneworld models may yield interesting effects ranging from high-energy physics to cosmology, or even some low-energy physics. Their mode structure modifies standard results in these physical realms that can be tested and used to set…

Among the multiple 5D thick braneworld models that have been proposed in the last years, in order to address several open problems in modern physics, there is a specific one involving a tachyonic bulk scalar field. Delving into this…

High Performance Computing is notorious for its long and expensive software development cycle. To address this challenge, we present Bind: a "partitioned global workflow" parallel programming model for C++ applications that enables quick…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-06-16 Alex Kosenkov , Matthias Troyer

We present the MultiWave C++-framework for adaptive numerical methods approximating hyperbolic balance laws. MultiWave has been designed as a computational laboratory where new mathematical concepts can be quickly implemented and tested. We…

Numerical Analysis · Mathematics 2026-04-02 Adrian Kolb , Aleksey Sikstel

We describe a new, parallel programming version of the scalar field simulation program LATTICEEASY. The new C++ program, CLUSTEREASY, can simulate arbitrary scalar field models on distributed-memory clusters. The speed and memory…

High Energy Physics - Phenomenology · Physics 2010-05-28 Gary N Felder

Braneworld models have been proposed as a possible solution to the problem of the accelerated expansion of the Universe. The idea is to dispense the dark energy (DE) and drive the late-time cosmic acceleration with a five-dimensional…

General Relativity and Quantum Cosmology · Physics 2018-06-13 Miguel A. Garcia-Aspeitia , A. Hernandez-Almada , Juan Magaña , Mario H. Amante , V. Motta , C. Martínez-Robles

Cosmological brane world solutions are found for five-dimensional bulk spacetimes with a scalar field. A supergravity inspired method for obtaining static solutions is combined with a method for finding brane cosmologies with constant bulk…

High Energy Physics - Theory · Physics 2009-11-07 Stephen C. Davis

A five-dimensional solution to Einstein's equations coupled to a scalar field has been proposed as a partial solution to the cosmological constant problem: the effect of arbitrary vacuum energy (tension) of a 3-brane is cancelled; however,…

High Energy Physics - Theory · Physics 2014-11-18 P. Binetruy , J. M. Cline , C. Grojean

C++QED is a framework for simulating open quantum dynamics in general. Historically, it has in the first place been developed for problems in moving-particle cavity QED, but since then has been applied in other fields as well. It is known…

Quantum Physics · Physics 2010-04-27 Andras Vukics