Abstract
A dimensionless discretization parameter Λ controls the accuracy and the computational cost of numerical renormalization-group calculations. For reliable computations of thermodynamical properties of impurities in metals, the upper bound Λ≤3 has long been established. This report discusses a generalization that raises the limit to Λ=10, yielding the same accuracy with significantly smaller computational cost.
- Received 14 December 1993
DOI:https://doi.org/10.1103/PhysRevB.49.11986
©1994 American Physical Society
