Renormalization of Hamiltonian Field Theory; a non-perturbative and non-unitarity approach

Details Renormalization of Hamiltonian Field Theory; a non-perturbative and non-unitarity approach Renormalization of Hamiltonian Field Theory; a non-perturbative and non-unitarity approach

2002-12-13

arxiv.org/abs/hep-ph/0212196v3

JHEP 0312:040,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, version shortened and improved, references added. To appear in JHEP

Scientific paper

10.1088/1126-6708/2003/12/040

Renormalization of Hamiltonian field theory is usually a rather painful algebraic or numerical exercise. By combining a method based on the coupled cluster method, analysed in detail by Suzuki and Okamoto, with a Wilsonian approach to renormalization, we show that a powerful and elegant method exist to solve such problems. The method is in principle non-perturbative, and is not necessarily unitary.

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