skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Noncommutative models in patch cosmology

Abstract

We consider several classes of noncommutative inflationary models within an extended version of patch cosmological braneworlds, starting from a maximally invariant generalization of the action for scalar and tensor perturbations to a noncommutative brane embedded in a commutative bulk. Slow-roll expressions and consistency relations for the cosmological observables are provided, both in the UV and IR region of the spectrum; the inflaton field is assumed to be either an ordinary scalar field or a Born-Infeld tachyon. The effects of noncommutativity are then analyzed in a number of ways and energy regimes.

Authors:
 [1]
  1. Dipartimento di Fisica, Universita di Parma, Parco Area delle Scienze 7/A, I-43100 Parma (Italy) and INFN-Gruppo Collegato di Parma, Parco Area delle Scienze 7/A, I-43100 Parma (Italy)
Publication Date:
OSTI Identifier:
20697996
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 70; Journal Issue: 10; Other Information: DOI: 10.1103/PhysRevD.70.103525; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BORN-INFELD THEORY; COMMUTATION RELATIONS; COSMOLOGY; DISTURBANCES; SCALAR FIELDS; SCALARS; TENSORS

Citation Formats

Calcagni, Gianluca. Noncommutative models in patch cosmology. United States: N. p., 2004. Web. doi:10.1103/PhysRevD.70.103525.
Calcagni, Gianluca. Noncommutative models in patch cosmology. United States. doi:10.1103/PhysRevD.70.103525.
Calcagni, Gianluca. Mon . "Noncommutative models in patch cosmology". United States. doi:10.1103/PhysRevD.70.103525.
@article{osti_20697996,
title = {Noncommutative models in patch cosmology},
author = {Calcagni, Gianluca},
abstractNote = {We consider several classes of noncommutative inflationary models within an extended version of patch cosmological braneworlds, starting from a maximally invariant generalization of the action for scalar and tensor perturbations to a noncommutative brane embedded in a commutative bulk. Slow-roll expressions and consistency relations for the cosmological observables are provided, both in the UV and IR region of the spectrum; the inflaton field is assumed to be either an ordinary scalar field or a Born-Infeld tachyon. The effects of noncommutativity are then analyzed in a number of ways and energy regimes.},
doi = {10.1103/PhysRevD.70.103525},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 10,
volume = 70,
place = {United States},
year = {2004},
month = {11}
}