Abstract
The quantum one-dimensional transverse Ising model with an imaginary longitudinal field is studied at using a real-space renormalization-group method. Evaluation is made of the real part of the ground-state longitudinal magnetization which is related to the Yang-Lee distribution of zeros of the partition function for the two-dimensional classical Ising model. The edge exponents are found as and , in agreement with series expansion estimates.
- Received 20 March 1979
DOI:https://doi.org/10.1103/PhysRevLett.43.805
©1979 American Physical Society