Spontaneous symmetry breaking in de Sitter space

We consider a Georgi–Glashow model conformally coupled to gravity. The conformally invariant action includes a triplet of scalar fields and SO(3) non-Abelian gauge fields. However, the usual mass term μ2ϕ2 is forbidden by the symmetry, and this role is now played by the conformal coupling of the Ricci scalar to the scalar fields. Spontaneous symmetry breaking occurs via gravitation. The spherically symmetric solutions correspond to localized solitons (magnetic monopoles) in asymptotically anti-de Sitter (AdS) spacetime and the metric outside the core of the monopole is found to be Schwarzschild–AdS. Though conformal symmetry excludes the Einstein–Hilbert term in the original action, it emerges in the effective action after spontaneous symmetry breaking and dominates the low-energy–long-distance regime outside the core of the monopole.

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Superconducting and Antiferromagnetic Phases of Space-Time

Advances in High Energy Physics ◽

10.1155/2017/7935185 ◽

2017 ◽

Vol 2017 ◽

pp. 1-9 ◽

Cited By ~ 1

Author(s):

Deepak Vaid

Keyword(s):

Black Holes ◽

Symmetry Breaking ◽

Gauge Field ◽

De Sitter Space ◽

Space Time ◽

Order Parameters ◽

De Sitter ◽

Preliminary Identification ◽

Rotating Black Holes ◽

Gauge Connection

A correspondence between the SO5 theory of high-TC superconductivity and antiferromagnetism, put forward by Zhang and collaborators, and a theory of gravity arising from symmetry breaking of a SO5 gauge field is presented. A physical correspondence between the order parameters of the unified SC/AF theory and the generators of the gravitational gauge connection is conjectured. A preliminary identification of regions of geometry, in solutions of Einstein’s equations describing charged-rotating black holes embedded in de Sitter space-time, with SC and AF phases is carried out.

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EQUATION OF STATE AND TEMPERATURE OF MASSIVE NONRELATIVISTIC BOSONS ARISING IN THE UNIVERSE AT THE FIRST STAGE OF REHEATING

Modern Physics Letters A ◽

10.1142/s0217732395003203 ◽

1995 ◽

Vol 10 (40) ◽

pp. 3069-3076 ◽

Cited By ~ 3

Author(s):

I. DYMNIKOVA ◽

M. KRAWCZYK

Keyword(s):

Phase Transitions ◽

Equation Of State ◽

Symmetry Breaking ◽

Spontaneous Symmetry Breaking ◽

Bose Condensate ◽

Grand Unification ◽

De Sitter ◽

Model Independent ◽

Ideal Quantum ◽

The Universe

We consider heavy nonrelativistic bosons with masses M~MGUT which arise in the Universe during phase transitions with spontaneous symmetry breaking at the grand unification scale. In the frame of statistical mechanics approach with model-independent description of cosmological background we show that the process of emerging of massive GUT bosons looks like evaporation of a Bose condensate. First massive nonrelativistic bosons behave like ideal quantum degenerate Bose gas which has the Gibbons-Hawking temperature due to the presence of the de Sitter event horizon.

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