檢視 @MPN 的原始碼

*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 the poisson distribution formula.
: probability of having n photon with MPN:
: P(n)=(MPN^n * e^-MPN)/n!
*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.

[[檔案:Poisson-distribution-graph.png|240px]]