Recent content by asei

Hi thanks for the help, actually I read the papers as you suggested and I track for more and I find the thing that I want. apparently, in order to calculate the the [tex]\left\langle[/a^{+}/a^{+}aa]\right\rangle we have to use the Heisenberg equation for it which depend on the other operators...

yes you right about the normal ordering, the sigma are the atomic transition operators. the problem is that when I calculate the mean values of these operators in time, how can I know the second order coherence. can I factorize the expression <A+A+AA> (the plus is dagger) to(<n><n(t)>)? if you...

Hi, I have a problem in calculating the second order correlation (coherence) from the master equation for the operators \sigma and a a[+][/SUP] , because I don't know if <aa^{+}a^{+}a> can be factorized to<a><n><a>. I want to do this calculation directly from the density matrix solution. thanks