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Title: Chiral Anomalous Dispersion

The linearized Einstein equation describing graviton propagation through a chiral medium appears to be helicity dependent. We analyze features of the corresponding spectrum in a collision-less regime above a flat background. In the long wave-length limit, circularly polarized metric perturbations travel with a helicity dependent group velocity that can turn negative giving rise to a new type of an anomalous dispersion. We further show that this chiral anomalous dispersion is a general feature of polarized modes propagating through chiral plasmas extending our result to the electromagnetic sector.
Authors:
 [1] ;  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Inst. for Nuclear Theory, Seattle, WA (United States); Univ. of Arizona, Tucson, AZ (United States)
Publication Date:
Report Number(s):
LA-UR-17-31502
Journal ID: ISSN 1029-8479; TRN: US1801876
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 2; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Atomic and Nuclear Physics
OSTI Identifier:
1423982

Sadofyev, Andrey, and Sen, Srimoyee. Chiral Anomalous Dispersion. United States: N. p., Web. doi:10.1007/JHEP02(2018)099.
Sadofyev, Andrey, & Sen, Srimoyee. Chiral Anomalous Dispersion. United States. doi:10.1007/JHEP02(2018)099.
Sadofyev, Andrey, and Sen, Srimoyee. 2018. "Chiral Anomalous Dispersion". United States. doi:10.1007/JHEP02(2018)099. https://www.osti.gov/servlets/purl/1423982.
@article{osti_1423982,
title = {Chiral Anomalous Dispersion},
author = {Sadofyev, Andrey and Sen, Srimoyee},
abstractNote = {The linearized Einstein equation describing graviton propagation through a chiral medium appears to be helicity dependent. We analyze features of the corresponding spectrum in a collision-less regime above a flat background. In the long wave-length limit, circularly polarized metric perturbations travel with a helicity dependent group velocity that can turn negative giving rise to a new type of an anomalous dispersion. We further show that this chiral anomalous dispersion is a general feature of polarized modes propagating through chiral plasmas extending our result to the electromagnetic sector.},
doi = {10.1007/JHEP02(2018)099},
journal = {Journal of High Energy Physics (Online)},
number = 2,
volume = 2018,
place = {United States},
year = {2018},
month = {2}
}