Abstract
We study numerically the critical region and the disordered phase of the random transverse-field Ising chain. By using a mapping of Lieb, Schultz, and Mattis to noninteracting fermions, we can obtain a numerically exact solution for rather large system sizes, L≤128. Our results confirm the striking predictions of earlier analytical work and, in addition, give results for some probability distributions and scaling functions. © 1996 The American Physical Society.
- Received 5 October 1995
DOI:https://doi.org/10.1103/PhysRevB.53.8486
©1996 American Physical Society
