TY - RPRT TI - Topological Frequency Conversion in Strongly Driven Quantum Systems AU - Martin, Ivar AU - Refael, Gil AU - Halperin, Bertrand PY - 2017 DO - 10.1103/physrevx.7.041008 UR - https://www.osti.gov/biblio/1399642 ID - 1399642 ER -