- #1
Konte
- 90
- 1
Hi everybody,
While reading some quantum mechanics book, I met the resolvent formalism which is presented as more powerful than the pertubative approach. For a system with a hamiltonian ## H = H_0 + H_{int} ##, when the interaction part ## H_{int} ## is no more a pertubation but rather having the same importance as ## H_0 ##, the perturbation theory is obviously no more appropriate to solve the problem.
My question:
Is the resolvent formalism can solve this specific case and viewed as the appropriate approach for?
Thanks
While reading some quantum mechanics book, I met the resolvent formalism which is presented as more powerful than the pertubative approach. For a system with a hamiltonian ## H = H_0 + H_{int} ##, when the interaction part ## H_{int} ## is no more a pertubation but rather having the same importance as ## H_0 ##, the perturbation theory is obviously no more appropriate to solve the problem.
My question:
Is the resolvent formalism can solve this specific case and viewed as the appropriate approach for?
Thanks