One-loop corrections to the primordial tensor spectrum from massless isocurvature fields

One-loop corrections to the primordial tensor spectrum from massless isocurvature fields

We study one-loop corrections to the two-point correlation function of tensor perturbations in primordial cosmology induced by massless spectator matter fields. Using the Schwinger-Keldysh formalism in cosmological perturbation theory, we employ dimensional regularization and cutoff regularization t...

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Bibliographic Details
Main Author: Tan, Hai Siong
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
Subjects:
Science::Physics
Classical Theories of Gravity
Cosmology of Theories Beyond the SM
Online Access:https://hdl.handle.net/10356/145595
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Institution: Nanyang Technological University
Language: English

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https://hdl.handle.net/10356/145595

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