Cong-Feng Qiao

Radial Coarse Graining Restores Vacuum Majorization in Wigner Phase Space

Quantum uncertainty limits how strongly Wigner functions can concentrate in phase space. It is commonly conjectured that the vacuum Wigner function continuously majorizes that of any Wigner-positive state. However, by constructing Wigner-positive states whose localized quantum coherence lowers their Wigner entropy belo...