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 language | English |
|---|---|
| Pages (from-to) | 6198-6208 |
| Number of pages | 11 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 55 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Jan 1 1997 |
Fingerprint
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 journal › Article
}
TY - JOUR
T1 - Perturbative Tamm-Dancoff renormalization
AU - Harada, Koji
AU - Okazaki, Atsushi
PY - 1997/1/1
Y1 - 1997/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0000702210&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000702210&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.55.6198
DO - 10.1103/PhysRevD.55.6198
M3 - Article
VL - 55
SP - 6198
EP - 6208
JO - Physical Review D
JF - Physical Review D
SN - 1550-7998
IS - 10
ER -