The Ising model remains a cornerstone in the study of statistical mechanics, providing a simple yet profound framework for understanding cooperative phenomena and criticality in physical systems. By ...

By extending a proof of a physically important behavior in one-dimensional quantum spin systems to higher dimensions, a RIKEN physicist has shown in a new study that the model lacks exact solutions.

A two-dimensional representation of a ten-dimensional hypercube. A RIKEN researcher has shown that quantum Ising models lack ...

Physicists have created the first two-dimensional version of the Bose glass, a novel phase of matter that challenges statistical mechanics. Physicists from the Cavendish Laboratory in Cambridge have ...