Abstract
We give a physical description in terms of percolation theory of the phase transition that occurs when the disorder increases in the random antiferromagnetic spin-1 chain between a gapless phase with hidden topological order and a random singlet phase. We study the statistical properties of the percolation clusters by numerical simulations, and we compute exact exponents characterizing the transition by a real-space renormalization group calculation.
- Received 5 May 1997
DOI:https://doi.org/10.1103/PhysRevLett.79.3254
©1997 American Physical Society
