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UNIVERSITY OF CALIFORNIA, SANTA BARBARA Department of Physics
 

Summary: UNIVERSITY OF CALIFORNIA, SANTA BARBARA
Department of Physics
Prof. S. B. Giddings Fall 2010
TA: Erik Perkins
Physics 221A
Relativistic Quantum Field Theory
ASSIGNMENT #6 SOLUTIONS
Problem 1
(a)
The amplitude to produce no particles is
0|Te-i dtHI (t)
|0 = 0|Tei d4xj(x)I (x)
|0
which immediately gives us the desired expression for the probability.
(b)
Expanding the amplitude, we have
0|Tei d4xj(x)(x)
|0 = 1 + i d4
x j(x) 0|(x)|0
+

  

Source: Akhmedov, Azer - Department of Mathematics, University of California at Santa Barbara

 

Collections: Mathematics