TY - JOUR PB - American Physical Society ID - 10.1103/Physics.2.75 TI - Reversal of expectations JF - Physics JA - Physics J1 - PHYSICS VL - 2 IS - SP - 75 EP - PY - 2009/09/14/ UR - http://link.aps.org/doi/10.1103/Physics.2.75 A1 - Luis, Fernando ER -