arXiv.org e-print archive This link opens in a new windowarXiv is an open-access archive for 1,927,161 scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics. Materials on this site are not peer-reviewed by arXiv. Full text is available is various formats. Covers 1991 to the present. From Los Alamos National Lab and Cornell University.