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Prog. Theor. Phys. Supplement No.157 (2005) pp. 120-123
Exact Ground-State Energies of the Random-Field Ising Chain and Ladder
Toshiyuki Hamasaki and
Hidetoshi Nishimori
Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
Abstract:
We derive the exact ground-state energies of the random-field Ising
chain and ladder.
The random fields consist of three possible values for the chain model
and bimodal fields for the ladder model.
The results are piecewise linear as a function of the random-field
strength.
The zero-temperature transfer matrix method is used to obtain these
results.
URL :
http://ptp.ipap.jp/link?PTPS/157/120/
DOI : 10.1143/PTPS.157.120
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