shortpapers-au revised 9/94 Information for Authors: SHORT PAPERS The Physical Review publishes Articles, Rapid Communications, Brief Reports, and Comments. Except for Articles, these are limited in length. Each paper must have an abstract. Announcements of planned research and progress reports are not suitable for publication. A series of short papers by the same authors on a particular subject is discouraged; a comprehensive single regular article is preferred. We encourage authors to follow a Rapid Communication or a Letter in Physical Review Letters with the subsequent submission of a longer version of the same work, but significant additional material must be included. Neither Articles nor Brief Reports should be followed by such expanded articles. Short Regular ARTICLES Articles in the Physical Review may be short; there is no minimum length limit. RAPID COMMUNICATIONS Rapid Communications are intended for important new results which deserve accelerated publication, and are therefore given priority in editorial processing and production to minimize the time between receipt and publication. Authors submitting papers as Rapid Communications should explain in a cover letter why the work justifies this priority treatment. Rapid Communications are similar to Letters; the principal difference is that Letters are accessible to a general audience of physicists and allied scientists, while Rapid Communications are primarily for a more specialized audience, the usual readers of a particular Physical Review journal (A, B, C, D, or E). BRIEF REPORTS Brief Reports are accounts of completed research which do not warrant regular Articles or the priority handling given to Rapid Communications; however, the same standards of scientific quality apply. (Addenda are included in Brief Reports.) COMMENTS Comments criticize or correct specific papers of other authors previously published in the Physical Review. Each Comment should state clearly to which paper it refers and should not contain polemics.