arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/9807049physics.plasm-ph
收藏

等离子体中准粒子的有质动力

Ponderomotive force of quasi-particles in a plasma

L. O. Silva, R. Bingham, J. M. Dawson, W. B. Mori

摘要:

我们推导出在背景等离子体中由任意分布的非相互作用准粒子所施加的力,这些准粒子对应于等离子体的集体激发(等离子体激元、声子)或被修饰的粒子(光子、中微子)。我们的方法是基于有效的哈密顿描述的准经典动力学的存在下的背景介质中的单个粒子。我们恢复通常的结果,相对论性的有质动力的光子气体,我们推导出的力,由于弱相互作用,施加在背景介质中的电子,正电子和中子的任意分布函数的电子-中微子。推广到其他背景物种和其他中微子的味道也进行了讨论。

英文摘要:

We derive the force exerted in the background plasma by an arbitrary distribution of non interacting quasi-particles, corresponding to either collective excitations of the plasma (plasmons, phonons) or em dressed particles (photons, neutrinos). Our approach is based on the effective Hamiltonian describing the quasi-classical dynamics of the individual particles in the presence of a background medium. We recover the usual results for the relativistic ponderomotive force of a photon gas, and we derive the force, due to weak interactions, exerted by the electron-neutrinos in a background medium containing electrons, positrons and neutrons with arbitrary distribution functions. Generalization to other background species and other neutrino flavors is also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑