Chiral Anomalous Dispersion

Sadofyev, Andrey; Sen, Srimoyee

doi:10.1007/JHEP02(2018)099

Title: Chiral Anomalous Dispersion

Journal Article · 15 February 2018 · Journal of High Energy Physics (Online)

DOI: https://doi.org/10.1007/JHEP02(2018)099 · OSTI ID:1423982

Sadofyev, Andrey ^[1]; Sen, Srimoyee ^[2]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Inst. for Nuclear Theory, Seattle, WA (United States); Univ. of Arizona, Tucson, AZ (United States)

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.

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Research Organization:: Los Alamos National Laboratory (LANL)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1423982

Report Number(s):: LA-UR-17-31502

Journal Information:: Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 2 Vol. 2018; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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