Photon polarizability and its effect on the dispersion of plasma waves
Highfrequency photons travelling in plasma exhibit a linear polarizability that can influence the dispersion of linear plasma waves. We present a detailed calculation of this effect for Langmuir waves as a characteristic example. Here, two alternative formulations are given. In the first formulation, we calculate the modified dispersion of Langmuir waves by solving the governing equations for the electron fluid, where the photon contribution enters as a ponderomotive force. In the second formulation, we provide a derivation based on the photon polarizability. Then, the calculation of ponderomotive forces is not needed, and the result is more general.
 Authors:

^{[1]}
;
^{[2]}
 Princeton Univ., Princeton, NJ (United States); Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
 Princeton Univ., Princeton, NJ (United States)
 Publication Date:
 Grant/Contract Number:
 NA0002948; AC0209CH11466
 Type:
 Accepted Manuscript
 Journal Name:
 Journal of Plasma Physics
 Additional Journal Information:
 Journal Volume: 83; Journal Issue: 02; Journal ID: ISSN 00223778
 Publisher:
 Cambridge University Press
 Research Org:
 Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
 Sponsoring Org:
 USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC24)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; plasma nonlinear phenomena; plasma waves
 OSTI Identifier:
 1353397
Dodin, I. Y., and Ruiz, D. E.. Photon polarizability and its effect on the dispersion of plasma waves. United States: N. p.,
Web. doi:10.1017/s0022377817000198.
Dodin, I. Y., & Ruiz, D. E.. Photon polarizability and its effect on the dispersion of plasma waves. United States. doi:10.1017/s0022377817000198.
Dodin, I. Y., and Ruiz, D. E.. 2017.
"Photon polarizability and its effect on the dispersion of plasma waves". United States.
doi:10.1017/s0022377817000198. https://www.osti.gov/servlets/purl/1353397.
@article{osti_1353397,
title = {Photon polarizability and its effect on the dispersion of plasma waves},
author = {Dodin, I. Y. and Ruiz, D. E.},
abstractNote = {Highfrequency photons travelling in plasma exhibit a linear polarizability that can influence the dispersion of linear plasma waves. We present a detailed calculation of this effect for Langmuir waves as a characteristic example. Here, two alternative formulations are given. In the first formulation, we calculate the modified dispersion of Langmuir waves by solving the governing equations for the electron fluid, where the photon contribution enters as a ponderomotive force. In the second formulation, we provide a derivation based on the photon polarizability. Then, the calculation of ponderomotive forces is not needed, and the result is more general.},
doi = {10.1017/s0022377817000198},
journal = {Journal of Plasma Physics},
number = 02,
volume = 83,
place = {United States},
year = {2017},
month = {3}
}