148 citations · 257 across the 6 of their papers we have counts for
3 papers · 1 filter
Possibly Exact Solution for the Multicritical Point of Finite-Dimensional Spin Glasses
Hidetoshi Nishimori, Koujin Takeda, Tomohiro Sasamoto
After briefly describing the present status of the spin glass theory, we present a conjecture on the exact location of the multicritical point in the phase diagram of finite-dimens…
Self-Duality and Phase Structure of the 4D Random-Plaquette Z_2 Gauge Model
Gaku Arakawa, Ikuo Ichinose, Tetsuo Matsui +1
In the present paper, we shall study the 4-dimensional Z_2 lattice gauge model with a random gauge coupling; the random-plaquette gauge model(RPGM). The random gauge coupling at ea…
Nonexponential decay of an unstable quantum system: Small--value s-wave decay
Toshifumi Jittoh, Shigeki Matsumoto, Joe Sato +2
We study the decay process of an unstable quantum system, especially the deviation from the exponential decay law. We show that the exponential period no longer exists in the case…