Articles in Press
"APS Articles in Press" (AiPS) is a list of recently accepted APS articles, in manuscript format, not yet subjected to rigorous fact-checking, copyediting, formatting, and image processing. Each AiPS article persists here only until the article is published in final form. AiPS articles are citable, although the final published article is preferred for citation, if available. Be sure to include the date and the digital object identifier (“doi”) when citing either version of the article.