- #1
tayyaba aftab
- 20
- 0
i have been given a problem for writing s matrix in second order perturbative theory for an interaction hamiltonian with phi 4 and phi 3 contributions.
it is also given that our initial state is of 2 particles and final state is of three particles.
now in solving that i have to take time ordering of the hamiltonian at two different points.
problem is that i am unable to guess the right term of time ordering for the cpndition of two in coming and three outgoing particles.
can some body please help me in writing that.
i have to submit my assignment after vacations
so its urgent
tayyaba
it is also given that our initial state is of 2 particles and final state is of three particles.
now in solving that i have to take time ordering of the hamiltonian at two different points.
problem is that i am unable to guess the right term of time ordering for the cpndition of two in coming and three outgoing particles.
can some body please help me in writing that.
i have to submit my assignment after vacations
so its urgent
tayyaba