Comment on "Spin-Gradient-Driven Light Amplification in a Quantum Plasma"
Plasma Physics
2015-07-02 v2 Other Condensed Matter
Fluid Dynamics
Abstract
A comment on the Letter by S. Braun, F. A. Asenjo and S. M. Mahajan, Phys. Rev. Lett., 109, 175003 (2012). We show that recent arguments for light amplification driven by inhomogeneous quantum spin fields in low temperature electron plasmas in metals are invalid. In essence, a neglect of Pauli `blocking' led the authors to over-estimate the effects of intrinsic spin.
Cite
@article{arxiv.1403.0228,
title = {Comment on "Spin-Gradient-Driven Light Amplification in a Quantum Plasma"},
author = {Govind S. Krishnaswami and Rajaram Nityananda and Abhijit Sen and Anantanarayanan Thyagaraja},
journal= {arXiv preprint arXiv:1403.0228},
year = {2015}
}
Comments
2 pages. Published version of Comment along with an addendum, updated references