Artículos de revistas
Renormalization group in potential scattering
Fecha
1995-01-01Registro en:
Physical Review Letters, v. 74, n. 23, p. 4572-4575, 1995.
0031-9007
10.1103/PhysRevLett.74.4572
2-s2.0-10644232752
Autor
Universidade Estadual Paulista (UNESP)
Institución
Resumen
Renormalization group equations for the physical t matrix are written for quantum scattering with some potentials singular at the origin in two and three dimensions. The momentum-space perturbative treatment of these scattering problems exhibits ultraviolet divergences and permits renormalization leading to a scale. These equations yield the correct asymptotic behavior and some low-energy properties of the t matrix. Illustrations are made for the Dirac delta potential in two and three dimensions. © 1995 The American Physical Society.