Classical defects in higher-dimensional Einstein gravity coupled to nonlinear $$\sigma $$σ-models
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DOI: 10.1007/s10714-017-2278-8
Abstract: We construct solutions of higher-dimensional Einstein gravity coupled to nonlinear $$\sigma $$σ-model with cosmological constant. The $$\sigma $$σ-model can be perceived as exterior configuration of a spontaneously-broken $$SO(D-1)$$SO(D-1) global higher-codimensional “monopole”. Here we allow the… read more here.
Keywords: sigma; gravity coupled; dimensional einstein; coupled nonlinear ... See more keywords
One-loop diagrams in quantum gravity coupled to scalar electrodynamics
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271819501001
Abstract: In nonsupersymmetric-covariant quantum gravity theory, for each system of gravity coupled with single field is one-loop divergent. There were two kinds of methods to reach this result: diagrammatic calculation and heat kernel expansion. On the… read more here.
Keywords: electrodynamics; gravity; quantum gravity; one loop ... See more keywords