Recent content by NightHaWk

That is what I was wondering about the second term, I did the separete change of variable,but I could not justify the reunion under one common integral.Thank you very much for the help!

If you could explain the second term as well i would be grateful because I still cannot get the same result as the given solution :)

So I am trying to understand and solve the problem mentioned in the title.I found a solution online: https://physics.bgu.ac.il/COURSES/QuantumMechCohen/ExercisesPool/EXERCISES/ex_9011_sol_Y09.pdf The problem is, I can't understand this step : I relly can't find out how the two expontential...