Two-state spin systems with negative interactions
We study the approximability of computing the partition functions of two-state spin systems. The problem is parameterized by a 2 × 2 symmetric matrix. Previous results on this problem were restricted either to the case where the matrix has non-negative entries, or to the case where the diagonal entr...
| المؤلفون الرئيسيون: | , , |
|---|---|
| التنسيق: | Conference item |
| اللغة: | English |
| منشور في: |
Schloss Dagstuhl
2024
|