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Title: Energy conditions in Starobinsky supergravity

Abstract

We consider the classical energy conditions (strong, null and weak) in Starobinsky supergravity theories. We study in detail the simplest Starobinsky supergravity model in the ''old-minimal' supergravity setup and find examples of violations of each energy condition for a certain range of the parameters due to extra scalar d.o.f. present in supergravity. We find the null and weak energy conditions to be preserved and the strong energy condition to be violated in the physically relevant examples such as inflation and dark energy.

Authors:
 [1];  [2]
  1. Dipartimento di Fisica, Università di L'Aquila, 67010 Coppito AQ (Italy)
  2. Department of Physics, Tokyo Metropolitan University, Minami-ohsawa 1-1, Hachioji-shi, Tokyo 192-0397 (Japan)
Publication Date:
OSTI Identifier:
22679943
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 03; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; INFLATIONARY UNIVERSE; NONLUMINOUS MATTER; SIMULATION; SUPERGRAVITY

Citation Formats

Addazi, Andrea, and Ketov, Sergei V., E-mail: andrea.addazi@lngs.infn.it, E-mail: sergey.ketov@gmail.com. Energy conditions in Starobinsky supergravity. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/03/061.
Addazi, Andrea, & Ketov, Sergei V., E-mail: andrea.addazi@lngs.infn.it, E-mail: sergey.ketov@gmail.com. Energy conditions in Starobinsky supergravity. United States. doi:10.1088/1475-7516/2017/03/061.
Addazi, Andrea, and Ketov, Sergei V., E-mail: andrea.addazi@lngs.infn.it, E-mail: sergey.ketov@gmail.com. Wed . "Energy conditions in Starobinsky supergravity". United States. doi:10.1088/1475-7516/2017/03/061.
@article{osti_22679943,
title = {Energy conditions in Starobinsky supergravity},
author = {Addazi, Andrea and Ketov, Sergei V., E-mail: andrea.addazi@lngs.infn.it, E-mail: sergey.ketov@gmail.com},
abstractNote = {We consider the classical energy conditions (strong, null and weak) in Starobinsky supergravity theories. We study in detail the simplest Starobinsky supergravity model in the ''old-minimal' supergravity setup and find examples of violations of each energy condition for a certain range of the parameters due to extra scalar d.o.f. present in supergravity. We find the null and weak energy conditions to be preserved and the strong energy condition to be violated in the physically relevant examples such as inflation and dark energy.},
doi = {10.1088/1475-7516/2017/03/061},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 03,
volume = 2017,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}