scispace - formally typeset
Search or ask a question
Topic

Symmetry (physics)

About: Symmetry (physics) is a research topic. Over the lifetime, 26435 publications have been published within this topic receiving 500189 citations. The topic is also known as: symmetry (physics) & physical symmetry.


Papers
More filters
Journal ArticleDOI
Howard Georgi1
TL;DR: In this article, a new realization of chiral SU(3) × SU (3) symmetry is discussed, which encompasses both the Wigner-Weyl mode and the Nambu-Goldstone mode.

106 citations

Journal ArticleDOI
TL;DR: In this article, the successful A 4 family symmetry for leptons is applied to quarks, motivated by the quark-lepton assignments of SU ( 5 ), in good agreement with data.

106 citations

Journal ArticleDOI
TL;DR: In this article, the authors considered the possibility that the family group may be a spontaneously broken continuous global symmetry, and they showed that the couplings of the associated Goldstone bosons to fermions can be sufficiently suppressed so as to satisfy the phenomenological bounds.

106 citations

Journal ArticleDOI
TL;DR: In this article, a 3-dimensional Cartesian (x,y,z) coordinate grid is used to simulate axisymmetric systems about the z axis, which avoids the coordinate singularities which often arise when cylindrical or polar-spherical coordinate finite difference grids are used, particularly in simulating tensor partial differential equations like those of 3+1 numerical relativity.
Abstract: We present a new technique for the numerical simulation of axisymmetric systems. This technique avoids the coordinate singularities which often arise when cylindrical or polar-spherical coordinate finite difference grids are used, particularly in simulating tensor partial differential equations like those of 3+1 numerical relativity. For a system axisymmetric about the z axis, the basic idea is to use a 3-dimensional Cartesian (x,y,z) coordinate grid which covers (say) the y=0 plane, but is only one finite-difference-molecule--width thick in the y direction. The field variables in the central y=0 grid plane can be updated using normal (x,y,z)--coordinate finite differencing, while those in the y eq 0 grid planes can be computed from those in the central plane by using the axisymmetry assumption and interpolation. We demonstrate the effectiveness of the approach on a set of fully nonlinear test computations in 3+1 numerical general relativity, involving both black holes and collapsing gravitational waves.

106 citations

Journal ArticleDOI
TL;DR: In this paper, a series of double-wave solutions of the (2+1)-dimensional coupled Burgers equations are derived by making use of the generalized unified method (GUM), and the Lie symmetry technique (LST) is also utilized for the symmetry reductions.

106 citations


Network Information
Related Topics (5)
Supersymmetry
29.7K papers, 1.1M citations
86% related
Gauge theory
38.7K papers, 1.2M citations
86% related
General relativity
29K papers, 810.8K citations
85% related
Higgs boson
33.6K papers, 961.7K citations
84% related
Gravitation
29.3K papers, 821.5K citations
84% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202217
20211,679
20201,178
20191,006
20181,040
2017939