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Singular potentials and limit cycles

Journal Article · · Physical Review A
We show that a central 1/r{sup n} singular potential (with n{>=}{>=}2) is renormalized by a one-parameter square-well counterterm; low-energy observables are made independent of the square-well width by adjusting the square-well strength. We find a closed form expression for the renormalization-group evolution of the square-well counterterm.
Research Organization:
Brookhaven National Laboratory
Sponsoring Organization:
(US)
DOE Contract Number:
AC02-98CH10886; FG03-97ER41014
OSTI ID:
40277162
Journal Information:
Physical Review A, Journal Name: Physical Review A Journal Issue: 4 Vol. 64; ISSN 1050-2947
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

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