Reply to Comment on "Quantification of Macroscopic Quantum Superpositions within Phase Space"

Gong points out [quant-ph arXiv:1106.0062] a “direct connection” between our measure [PRL 106, 220401 (2011)] recently proposed to quantify macroscopic quantum superpositions and a previously studied quantity introduced to study classical and quantum chaos. We point out that the two measures are obviously different for some mixed states, and the previous one does not work as a sensible measure to quantify quantum superpositions.