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200 papers

We present numerical and experimental results for the development of islands of stability in atom-optics billiards with soft walls. As the walls are soften, stable regions appear near singular periodic trajectories in converging (focusing)…

Chaotic Dynamics · Physics 2007-05-23 Ariel Kaplan , Nir Friedman , Mikkel Andersen , Nir Davidson

We consider a model with two real scalar fields which admits phantom domain wall solutions. We investigate the structure and evolution of these phantom domain walls in an expanding homogeneous and isotropic universe. In particular, we show…

General Relativity and Quantum Cosmology · Physics 2017-08-16 P. P. Avelino , V. M. C. Ferreira , J. Menezes , L. Sousa

Embedded walls are domain wall solutions which are unstable in the vacuum but stabilized in a plasma of the early Universe. We show how embedded walls in which the electroweak symmetry is restored can lead to an efficient scenario of…

High Energy Physics - Phenomenology · Physics 2024-08-13 Tobias Schröder , Robert Brandenberger

We investigate numerically kink collisions in a $1+1$ dimensional scalar field theory with multiple vacua. The domain wall model we are interested in involves two scalar fields and a potential term built from an asymmetric double well and…

High Energy Physics - Theory · Physics 2016-08-19 Jennifer Ashcroft , Minoru Eto , Mareike Haberichter , Muneto Nitta , M. B. Paranjape

A family of degenerate domain wall configurations, partially preserving supersymmetry, is discussed in a generalized Wess-Zumino model with two scalar superfields. We establish some general features inherent to the models with continuously…

High Energy Physics - Theory · Physics 2008-11-26 M. A. Shifman , M. B. Voloshin

We investigate the presence of domain walls in models described by three real scalar fields. We search for stable defect structures which minimize the energy of the static field configurations. We work out explict orbits in field space and…

High Energy Physics - Theory · Physics 2009-11-07 D. Bazeia , L. Losano , C. Wotzasek

We demonstrate the possibility of creating domain walls described by a single component Gross-Pitaevskii equation with attractive interaction, in the presence of an optical-lattice potential. While it is found that the extended domain wall…

N=2 SQED with several flavors admits multiple, static BPS domain wall solutions. We determine the explicit two-kink metric and examine the dynamics of colliding domain walls. The multi-kink metric has a toric Kahler structure and we reduce…

High Energy Physics - Theory · Physics 2009-11-07 David Tong

For the derived category of bounded complexes of sheaves on a smooth projective surface, Bridgeland and Arcara-Bertram constructed Bridgeland stability conditions $(Z_m, \mathcal P_m)$ parametrized by $m \in (0, +\infty)$. In this paper, we…

Algebraic Geometry · Mathematics 2011-03-23 Jason Lo , Zhenbo Qin

We present preliminary results for the static quark potential computed on some of the DWF lattice configurations generated by the RBC-UKQCD collaborations. Most of these results were obtained using Wilson lines joining spatial planes fixed…

High Energy Physics - Lattice · Physics 2008-11-26 Min Li

We show a stability-type theorem for foliations on projective spaces which arise as pullbacks of foliations with a split tangent sheaf on weighted projective spaces. As a consequence, we will be able to construct many irreducible components…

Algebraic Geometry · Mathematics 2025-01-14 Javier Gargiulo Acea , Ariel Molinuevo , Federico Quallbrunn , Sebastián Lucas Velazquez

We have constructed a bulk & brane action of IIA theory which describes a pair of BPS domain walls on S_1/Z_2, with strings attached. The walls are given by two orientifold O8-planes with coincident D8-branes and `F1-D0'-strings are…

High Energy Physics - Theory · Physics 2010-02-03 Renata Kallosh , Sergey Prokushkin , Marina Shmakova

We consider the Grand Unified SU(5) model with a small or vanishing cubic term in the adjoint scalar field in the potential. This gives the model an approximate or exact Z$_2$ symmetry whose breaking leads to domain walls. The simplest…

High Energy Physics - Phenomenology · Physics 2009-10-31 Levon Pogosian , Tanmay Vachaspati

In this paper we study the dynamics of relativistic domain walls in the presence of static symmetry-restoring impurities. The field theory is precisely the same as what is known to cosmologists as the "symmetron model", whereby the usual…

High Energy Physics - Theory · Physics 2014-12-24 Jonathan A. Pearson

A skyrmion is a topological texture in the continuum field theory. Recent experimental observation of skyrmions in chiral magnet evokes a flourish of its extensive study. Skyrmion is expected to be a key component of the next generation…

Strongly Correlated Electrons · Physics 2014-08-15 Yan Zhou , Motohiko Ezawa

We investigate theoretically the ground-state configurations of two-dimensional charged-particle systems with an elliptical hard-wall boundary and their vibrational eigenmodes. The systems exhibit a series of structural transitions, finally…

Strongly Correlated Electrons · Physics 2007-05-23 Zhen-zhong Zhang , Kai Chang

Applications of Domain Wall fermions to various vector-like lattice theories are reviewed with an emphasis on QCD thermodynamics. Methods for improving their chiral properties at strong coupling are discussed and results from implementing…

High Energy Physics - Lattice · Physics 2007-05-23 P. Vranas

We formulate the massive domain wall fermions on anisotropic lattices. For the massive domain wall fermion, we find that the dispersion relation assumes the usual form in the low momentum region when the bare parameters are properly tuned.…

High Energy Physics - Lattice · Physics 2016-09-01 Xu Feng , Xin Li , Wei Liu , Chuan Liu

A stable pair on a projective variety consists of a sheaf and a global section subject to stability conditions parameterized by rational polynomials. We will show that for a smooth projective threefold and a class of a rank 2 sheaf, there…

Algebraic Geometry · Mathematics 2026-01-12 Marcos Jardim , Dapeng Mu

We study the presence of lumplike solutions in models described by a single real scalar field with standard kinematics in two-dimensional spacetime. The results show several distinct models that support the presence of bell-shaped, lumplike…

High Energy Physics - Theory · Physics 2015-10-07 D. Bazeia , M. A. Marques , R. Menezes