Effective density matrix for free-electron-laser radiation

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The effective density matrix of the radiation field in the free-electron laser is computed under realistic initial conditions for the electrons and photons. The field is predicted to be a superposition of a coherent state and a chaotic state. The width of the distribution in the coherent-state expansion is given by the sum of classical and quantum-mechanical initial fluctuations of the electron beam.

Original languageEnglish (US)
Pages (from-to)3206-3209
Number of pages4
JournalPhysical Review A
Issue number6
StatePublished - 1991
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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