Direct measurement of the biphoton Wigner function through two-photon interference
Direct measurement of the biphoton Wigner function through two-photon interference
The Hong-Ou-Mandel (HOM) experiment was a benchmark in quantum optics, evidencing the non–classical nature of photon pairs, later generalized to quantum systems with either bosonic or fermionic statistics. We show that a simple modification in the well-known and widely used HOM experiment provides the direct measurement of the Wigner function. …