Geometrical mechanics for particles in dissipative systems

Dan Censor

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The quantum-mechanical problem of motion of particles in dissipative systems is considered. Ray theory is applied to cases where systems change slowly in space and time. Although complex momentum and energy are necessary to describe the physical situation, real space-time paths and group velocity are imposed. The analogy to geometrical optics in absorbing systems is striking and a nonrelativistic as well as relativistic treatment is possible.

Original languageEnglish
Pages (from-to)1108-1111
Number of pages4
JournalPhysical Review D
Issue number4
StatePublished - 1 Jan 1979

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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