Perturbative Tamm-Dancoff renormalization

Koji Harada, Atsushi Okazaki

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

A new two-step renormalization procedure is proposed. In the first step, the effects of high-energy states are considered in the conventional (Feynman) perturbation theory. In the second step, the coupling to many-body states is eliminated by a similarity transformation. The resultant effective Hamiltonian contains only interactions which do not change particle number. It is subject to numerical diagonalization. We apply the general procedure to a simple example for the purpose of illustration.

Original languageEnglish
Pages (from-to)6198-6208
Number of pages11
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume55
Issue number10
DOIs
Publication statusPublished - Jan 1 1997

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perturbation theory
interactions
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Perturbative Tamm-Dancoff renormalization. / Harada, Koji; Okazaki, Atsushi.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 55, No. 10, 01.01.1997, p. 6198-6208.

Research output: Contribution to journalArticle

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