Counterterms in cosmological perturbation theory

  title={Counterterms in cosmological perturbation theory},
  author={Gaurav Goswami},
  journal={Physical Review D},
Cosmological perturbation theory is the theory of fluctuations (scalar as well as tensor) around the inflationary cosmological background solution. It is important to understand the details of the process of renormalization in this theory. In more familiar applications of quantum field theory, the dependence on the external momenta of the dimensionally regulated expression of the one-loop contribution to a correlator determines the number of counter terms (and their forms) required to… 



Journal of High Energy Physics Little string theory at a TeV

We propose a framework where the string scale as well as all compact dimensions are at the electroweak scale ∼ TeV−1. The weakness of gravity is attributed to the small value of the string coupling

Quantum field theory in condensed matter physics

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This book provides an elementary introduction to the subject of quantum optics, the study of the quantum mechanical nature of light and its interaction with matter. The presentation is almost

Under the spell of the gauge principle

Renormalization of gauge theories the renormalization group extended objects instantons planar diagrams quark confinement quantum gravity and black holes.

Journal of High Energy Physics 12

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Journal of High Energy Physics 5

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Physical Review D 80

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Quantum Field Theory (Cambridge

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Physics Reports367

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