Photon antibunching in pulsed squeezed light generated via parametric amplification. M. Koashi, K. Kono, T. Hirano and M. Matsuoka in Phys. Rev. Lett. 71:1164 (1993).  What the paper says!?

Screenshot 20240218 130046.png

They implement the scheme of Stoler[1] to admix squeezed and coherent states but with pulsed excitation. Stoller's scheme was time-dependent and occurred in the transient anyway. They use the signal and pump of a degenerate parametric amplification.

They observed both bunching and antibunching depending on the phase relationship, as seen here for $g^{(2)}(\tau)$:

Screenshot 20240218 132827.png

and here for $g^{(2)}(0)$ as a function of the intensity of mixing.

Screenshot 20240218 135251.png

References

  1. Photon Antibunching and Possible Ways to Observe It. D. Stoler in Phys. Rev. Lett. 33:1397 (1974).