User contributions for 130.202.148.169

30 June 2025

• 20:1020:10, 30 June 2025 diff hist +75 Spontaneous parametric down-conversion This wasn't very clear because the pump photon is always destroyed, no matter what the type. Type-0 is characterized by all three photons, pump, signal, and idler, having the same polarization, and this more clearly reflects that. current