RENORMALIZATION OF HAMILTONIAN
2001 ◽
Vol 16
(11)
◽
pp. 1983-1988
Keyword(s):
In this talk we describe a novel method for the renormalization of the Hamiltonian operator in Quantum Field Theory in the spirit of the Wilson renormalization group1. By a series of unitary transformations that successively decouple the high-frequency degrees of freedom and partially diagonalizes the high-energy part, we obtain the effective Hamiltonian for the low energy degrees of freedom. Using this technique we study λϕ4 theory at two loops and QED and Yang-Mills theory at one loop.
1994 ◽
Vol 52
◽
pp. 488-489
Keyword(s):
Keyword(s):
1934 ◽
Vol 147
(862)
◽
pp. 442-454
◽
Keyword(s):