A Hamiltonian model of dissipative wave-particle interactions and the negative-mass effect

A. I. Zhmoginov, I. Y. Dodin, N. J. Fisch

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

The effect of radiation friction is included in the Hamiltonian treatment of wave-particle interactions with autoresonant phase-locking, yielding a generalized canonical approach to the problem of dissipative dynamics near a nonlinear resonance. As an example, the negative-mass effect exhibited by a charged particle in a pump wave and a static magnetic field is studied in the presence of the friction force due to cyclotron radiation. Particles with negative parallel masses m∥ are shown to transfer their kinetic energy to the pump wave, thus amplifying it. Counterintuitively, such particles also undergo stable dynamics, decreasing their transverse energy monotonically due to cyclotron cooling, whereas some of those with positive m∥ undergo cyclotron heating instead, extracting energy from the pump wave.

Original languageEnglish (US)
Pages (from-to)1236-1241
Number of pages6
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume375
Issue number9
DOIs
StatePublished - Feb 28 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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