Squeezed Back-to-Back Correlation of D^0\!\bar D^0 in Relativistic Heavy-Ion Collisions

We investigate the squeezed back-to-back correlation (BBC) of D^0\!\bar D^0 in relativistic heavy-ion collisions, using the in-medium mass modification calculated with a self-energy in hot pion gas and the source space-time distributions provided by the viscous hydrodynamic code VISH2+1. It is found that the squeezed BBC of D^0\!\bar D^0 is significant in peripheral Au+Au collisions at the relativistic heavy ion collider energy. A possible way to detect the squeezed BBC in an experiment is presented.