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Title: Effect of VSR invariant Chern-Simons Lagrangian on photon polarization

Abstract

We propose a generalization of the Chern-Simons (CS) Lagrangian which is invariant under the SIM(2) transformations but not under the full Lorentz group. The generalized lagrangian is also invariant under a SIM(2) gauge transformation. We study the effect of such a term on radiation propagating over cosmological distances. We find that the dominant effect of this term is to produce circular polarization as radiation propagates through space. We use the circular polarization data from distant radio sources in order to impose a limit on this term.

Authors:
; ;  [1]
  1. Department of Physics, Indian institute of Technology, Kanpur, 208016 (India)
Publication Date:
OSTI Identifier:
22525714
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2015; Journal Issue: 07; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COSMIC RAY PROPAGATION; COSMOLOGY; DISTANCE; GAUGE INVARIANCE; LAGRANGIAN FUNCTION; LORENTZ GROUPS; PHOTONS; POLARIZATION; SPACE; TRANSFORMATIONS

Citation Formats

Nayak, Alekha C., Verma, Ravindra K., and Jain, Pankaj. Effect of VSR invariant Chern-Simons Lagrangian on photon polarization. United States: N. p., 2015. Web. doi:10.1088/1475-7516/2015/07/031.
Nayak, Alekha C., Verma, Ravindra K., & Jain, Pankaj. Effect of VSR invariant Chern-Simons Lagrangian on photon polarization. United States. https://doi.org/10.1088/1475-7516/2015/07/031
Nayak, Alekha C., Verma, Ravindra K., and Jain, Pankaj. 2015. "Effect of VSR invariant Chern-Simons Lagrangian on photon polarization". United States. https://doi.org/10.1088/1475-7516/2015/07/031.
@article{osti_22525714,
title = {Effect of VSR invariant Chern-Simons Lagrangian on photon polarization},
author = {Nayak, Alekha C. and Verma, Ravindra K. and Jain, Pankaj},
abstractNote = {We propose a generalization of the Chern-Simons (CS) Lagrangian which is invariant under the SIM(2) transformations but not under the full Lorentz group. The generalized lagrangian is also invariant under a SIM(2) gauge transformation. We study the effect of such a term on radiation propagating over cosmological distances. We find that the dominant effect of this term is to produce circular polarization as radiation propagates through space. We use the circular polarization data from distant radio sources in order to impose a limit on this term.},
doi = {10.1088/1475-7516/2015/07/031},
url = {https://www.osti.gov/biblio/22525714}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 07,
volume = 2015,
place = {United States},
year = {Wed Jul 01 00:00:00 EDT 2015},
month = {Wed Jul 01 00:00:00 EDT 2015}
}