Effects of a global monopole on the thermodynamic phase transition of a charged AdS black hole
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DOI: 10.1088/1674-1137/ac878b
Abstract: We study the dynamical properties of the thermodynamic phase transition (PT) of a charged AdS black hole (BH) with a global monopole via the Gibbs free energy landscape and reveal the effects of the global… read more here.
Keywords: transition charged; phase transition; black hole; charged ads ... See more keywords
Vacuum polarization of Dirac fermions in the cosmological de Sitter global monopole spacetime
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DOI: 10.1103/physrevd.105.085006
Abstract: We study the vacuum polarisation effects of the Dirac fermionic field induced by a pointlike global monopole located in the cosmological de Sitter spacetime. First we derive the four orthonormal Dirac modes in this background… read more here.
Keywords: global monopole; vacuum; cosmological sitter; monopole ... See more keywords
Global monopoles in the extended Gauss-Bonnet gravity
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DOI: 10.1103/physrevd.107.085014
Abstract: We discuss self-gravitating global O(3) monopole solutions associated with the spontaneous breaking of O(3) down to a global O(2) in an extended Gauss Bonnet theory of gravity in (3+1)-dimensions, in the presence of a non-trivial… read more here.
Keywords: gravity; bonnet; global monopoles; global monopole ... See more keywords
Light deflection by a rotating global monopole spacetime
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DOI: 10.1103/physrevd.95.104012
Abstract: We investigate the deflection of light by a rotating global monopole spacetime and a rotating Letelier spacetime in the weak deflection approximation. To this end, we apply the Gauss-Bonnet theorem to the corresponding osculating optical… read more here.
Keywords: global monopole; rotating global; monopole spacetime; deflection ... See more keywords
Global monopole in Palatini f(R) gravity
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DOI: 10.1103/physrevd.99.064053
Abstract: We consider the space-time metric generated by a global monopole in an extension of General Relativity (GR) of the form $f(\mathcal{R})=\mathcal{R}-\lambda \mathcal{R}^2$. The theory is formulated in the metric-affine (or Palatini) formalism and exact analytical… read more here.
Keywords: global monopole; monopole palatini; palatini gravity; palatini ... See more keywords