Symmetries and invariants of the oscillator and envelope equations with time-dependent frequency
The single-particle dynamics in a time-dependent focusing field is examined. The existence of the Courant-Snyder invariant, a fundamental concept in accelerator physics, is fundamentally a result of the corresponding symmetry admitted by the harmonic oscillator equation with linear time-dependent fr...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
American Physical Society
2006-05-01
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Series: | Physical Review Special Topics. Accelerators and Beams |
Online Access: | http://doi.org/10.1103/PhysRevSTAB.9.054001 |