Paragraphs always begin with a blank input line. Unless a
hyphen is required in a word and that hyphen falls at the end of
a line as you type it, do not hyphenate a word at the end of a
line; REVTeX will do this. Continue to hyphenate modifiers
within a line of text, e.g., ``electro-optical devices."
Use 2 single curly quotes for quotation marks around quoted
text (``xxx''), not straight quotes ("xxx"). For opening quotes
this is two octal 140 characters (hex 60, near the top left on
most keyboards); for closing quotes, this is two octal 047 (hex
27) characters.
Don't use smallskip, bigskip, or any other vertical motion
commands. Horizontal motion commands are unnecessary as well.
Authors should avoid the use of specially designed "define characters" and choose symbols from those shown in the LaTeX\ User's Guide & Reference Manual or in Appendix A of this REVTeX\ Author's Guide. There is no guarantee that a specially designed definition will produce the desired results at the typesetter's production facility. If a special symbol is required and not listed in the LaTeX\ User's Guide & Reference Manual or in Appendix A of this REVTeX\ Author's Guide, please request special consideration in the cover letter accompanying the file submittal. The copy editor will make note of it, and the typesetter will attempt to accommodate the author. Use of unusual characters is subject to approval by the managing editor.