Spontaneous Symmetry Breaking of Rapidly Rotating Stars in General Relativity

In the report there are presented the general frameworks for the quartet-metric gravity based on the two main principles. First, there exist in space-time the distinct dynamical coordinates, given by a scalar quartet, playing the role of the Higgs fields for gravity. Second, the physical gravity fields arising due to the spontaneous symmetry breaking serve as the dark components of the Universe. It is argued that the mere admixture to metric of the scalar quartet may give rise to an extremely wide spectrum of the emergent gravity phenomena beyond General Relativity (GR). Further developing the proposed frameworks to find out the next-to-GR theory of gravity is a challenge.

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General relativity as the effective theory ofGL(4,R)spontaneous symmetry breaking

Physical Review D ◽

10.1103/physrevd.84.084018 ◽

2011 ◽

Vol 84 (8) ◽

Cited By ~ 2

Author(s):

E. T. Tomboulis

Keyword(s):

General Relativity ◽

Symmetry Breaking ◽

Spontaneous Symmetry Breaking ◽

Effective Theory

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Spontaneous symmetry breaking of dislocation core in SrTiO3

Materials Today Physics ◽

10.1016/j.mtphys.2021.100453 ◽

2021 ◽

pp. 100453

Author(s):

Hetian Chen ◽

Di Yi ◽

Ben Xu ◽

Jing Ma ◽

Cewen Nan

Keyword(s):

Symmetry Breaking ◽

Spontaneous Symmetry Breaking ◽

Dislocation Core

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Tachyons and Solitons in Spontaneous Symmetry Breaking in the Frame of Field Theory

Symmetry ◽

10.3390/sym13081358 ◽

2021 ◽

Vol 13 (8) ◽

pp. 1358

Author(s):

Yiannis Contoyiannis ◽

Michael P. Hanias ◽

Pericles Papadopoulos ◽

Stavros G. Stavrinides ◽

Myron Kampitakis ◽

...

Keyword(s):

Symmetry Breaking ◽

Spontaneous Symmetry Breaking ◽

Critical Point ◽

Universality Class ◽

Lattice Simulation ◽

Ginzburg Landau ◽

Spin Lattice ◽

Nuclear Collisions ◽

Ising Spin ◽

Relativistic Nuclear Collisions

This paper presents our study of the presence of the unstable critical point in spontaneous symmetry breaking (SSB) in the framework of Ginzburg–Landau (G-L) free energy. Through a 3D Ising spin lattice simulation, we found a zone of hysteresis where the unstable critical point continued to exist, despite the system having entered the broken symmetry phase. Within the hysteresis zone, the presence of the kink–antikink SSB solitons expands and, therefore, these can be observed. In scalar field theories, such as Higgs fields, the mass of this soliton inside the hysteresis zone could behave as a tachyon mass, namely as an imaginary quantity. Due to the fact that groups Ζ(2) and SU(2) belong to the same universality class, one expects that, in future experiments of ultra-relativistic nuclear collisions, in addition to the expected bosons condensations, structures of tachyon fields could appear.

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Rossby Waves in Astrophysics

Space Science Reviews ◽

10.1007/s11214-021-00790-2 ◽

2021 ◽

Vol 217 (1) ◽

Author(s):

T. V. Zaqarashvili ◽

M. Albekioni ◽

J. L. Ballester ◽

Y. Bekki ◽

L. Biancofiore ◽

...

Keyword(s):

Large Scale ◽

Rossby Waves ◽

Magnetic Activity ◽

Future Research ◽

Rotating Stars ◽

Spatial And Temporal Scales ◽

Physical Role ◽

Astrophysical Objects ◽

Exoplanetary Atmospheres ◽

Rapidly Rotating Stars

AbstractRossby waves are a pervasive feature of the large-scale motions of the Earth’s atmosphere and oceans. These waves (also known as planetary waves and r-modes) also play an important role in the large-scale dynamics of different astrophysical objects such as the solar atmosphere and interior, astrophysical discs, rapidly rotating stars, planetary and exoplanetary atmospheres. This paper provides a review of theoretical and observational aspects of Rossby waves on different spatial and temporal scales in various astrophysical settings. The physical role played by Rossby-type waves and associated instabilities is discussed in the context of solar and stellar magnetic activity, angular momentum transport in astrophysical discs, planet formation, and other astrophysical processes. Possible directions of future research in theoretical and observational aspects of astrophysical Rossby waves are outlined.

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