Figure 3. The figure illustrates the correlation between the coincidence detection rate for the HOM interferometry. It showcases the extraction of posi-tion marginals from the Schrödinger cat state Wigner distribution function, with a focus on varying decoherence time (𝜏) values

From

Analyzing the Decoherence on Biphoton and Schrödinger Cat States through Wigner Function

Simanshu Kumar, Nandan S Bisht

International Journal of Physics. 2025, 13(3), 73-79 doi:10.12691/ijp-13-3-5