@MPN

• Mean photon number of laser with only signal state. If @LASER_NUM is larger then one, list them separated by ",". If there's decoy and vacuum state, see @DECOY_PARAMS
• Mean photon number: Determine by bringing in the poisson distribution formula.
• Is store as MPN in the fortran code.

example

@MPN
0.1

Which mean the system has one laser, and it mean photon number is 0.1.