Results 1 to 10 of about 264,462 (334)
Formation of Topological Defects with Explicit Symmetry Breaking [PDF]
Physical Review Letters, 1996 We demonstrate a novel mechanism for the formation of topological defects in a first order phase transition for theories in the presence of small explicit symmetry breaking terms. We carry out numerical simulations of collisions of two bubbles in 2+1 dimensions for a field theory where U(1) global symmetry is spontaneously as well as explicitly broken.
Sanatan Digal, Ajit M. Srivastava
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Generation of new symmetries from explicit symmetry breaking [PDF]
Journal of Physics: Conference Series, 2021 Abstract We study how the explicit symmetry breaking, through a continuous parameter in the Lagrangian, can actually lead to the creation of different types of symmetries. As examples we consider the motion of a relativistic particle in a curved background, where a nonzero mass breaks the symmetry of the conformal algebra of the metric ...
N. Dimakis
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Spontaneous and explicit parity-time-symmetry breaking in drift-wave instabilities [PDF]
Physical Review E, 2021 A method of Parity-Time (PT)-symmetry analysis is introduced to study the high dimensional, complicated parameter space of drift wave instabilities. We show that spontaneous PT-symmetry breaking leads to the Ion Temperature Gradient (ITG) instability of drift waves, and the collisional instability is the result of explicit PT-symmetry breaking.
Hong Qin +3 more
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Persistence of stationary motion under explicit symmetry breaking perturbation [PDF]
Nonlinearity, 2019 Abstract Explicit symmetry breaking occurs when a dynamical system having a certain symmetry group is perturbed to a system which has strictly less symmetry. We give a geometric approach to study this phenomenon in the setting of Hamiltonian systems.
Marine Fontaine, James Montaldi
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Explicit spacetime-symmetry breaking and the dynamics of primordial fields [PDF]
Physical Review D, 2022 Significant revision and changes to results.
A. Nilsson
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LIGHT PSEUDO-GOLDSTONE BOSONS WITHOUT EXPLICIT SYMMETRY BREAKING [PDF]
International Journal of Modern Physics A, 2007 A mechanism is discussed to obtain light scalar fields from a spontaneously broken continuous symmetry without explicitly breaking it. If there is a continuous manifold of classical vacua in orbit space, its tangent directions describe classically massless fields that may acquire mass from perturbations of the potential that do not break the symmetry.
Antonio O. Bouzas
core +8 more sources
Ultrafast probing of isotope-induced explicit symmetry breaking in ethylene [PDF]
Communications ChemistrySymmetry governs nature’s laws, yet many of the natural phenomena occur due to the breakdown of symmetry. Here, we show how isotope-induced inversion symmetry breaking influences ultrafast photoisomerization processes in ethylene.
Alessandro Nicola Nardi +6 more
doaj +4 more sources
Spontaneous versus explicit replica symmetry breaking in the theory of disordered systems [PDF]
Physical Review E, 2010 We investigate the relation between spontaneous and explicit replica symmetry breaking in the theory of disordered systems. On general ground, we prove the equivalence between the replicon operator associated with the stability of the replica symmetric solution in the standard replica scheme and the operator signaling a breakdown of the solution with ...
D. Mouhanna, Gilles Tarjus
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Simulation of vortex-antivortex pair production in a phase transition with explicit symmetry breaking [PDF]
, 1998 We carry out numerical simulation of the formation of U(1) global vortices in a first order phase transition in 2+1 dimensions in the presence of small explicit symmetry breaking.
Sanatan Digal +2 more
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Explicit formulas, symmetry and symmetry breaking for Willmore surfaces of revolution [PDF]
Annals of Global Analysis and Geometry, 2017 In this paper we prove explicit formulas for all Willmore surfaces of revolution and demonstrate their use in the discussion of the associated Dirichlet boundary value problems. It is shown by an explicit example that symmetric Dirichlet boundary conditions do in general not entail the symmetry of the surface. In addition we prove a symmetry result for
Rainer Mandel
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