2005/04/04 by V. I. Yukalov
Physics and Astronomy · #cond-mat.stat-mech #physics.atom-ph
published as Encyclopedia of Nonlinear Science, edited by A. Scott (Routledge, New York, 2005) p. 144-147 · Latex file, 6 pages
arxiv created 2005/04/04 · arxiv updated 2009/12/01
The basic notions related to coherence phenomena are formulated. Two types of coherence are described, state coherence and transition coherence. Useful characteristics for quantifying coherence are defined, such as coherence functions, coherence radius, coherence length, and coherence time.