Sesolve for Time-Dependent Hamiltonians

[Ardit Thaqi]

Hi everybody, 

Hope this finds you well. Currently I want to see the dynamics of my system which is governed by an effective Hamiltonian H_eff(t). My system contain N-two-level atoms arranged in a ring. The effective Hamiltonian is defined in eq. (3). I have done the simulation with qutip, as seen in the end of the code, but it takes very much time.

Is there any other possibility I can define my effective Hamiltonian different in my code? 

Maybe something like

 H_eff(t) = f(t) x H_0 ?

Thanks in advance guys!

Regards,

Ardit