Hi,

I was wondering if it was possible to obtain the mean photon number of two qumodes?

I know its possible to get the mean photon number of one mode [0] using:

n0 = state.mean_photon(0)

and another mode [1]:

n1 = state.mean_photon(1)

But say I wanted the mean photon number of modes 0 and 1 together, as in:

n0n1 = state.mean_photon(0, 1)

So I obtain the mean of both modes?