Combinatorial optimization problems are at the root of many industrial processes and solving them is key to a more sustainable and efficient future. Ising machines can solve certain combinatorial ...

This is the last in a series of three papers on the history of the Lenz-Ising model from 1920 to the early 1970s. In the first paper, I studied the invention of the model in the 1920s, while in the ...

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.

These models differ by the constrains given to the orientation of the electron's spins (arrows). If all spins are aligned in one direction, the material becomes a ferromagnet. Below the magnetic ...

Ising modeller: a D-Wave quantum processor has simulated a 3D magnet. (Courtesy: D-Wave Systems) Researchers in Canada have used a D-Wave quantum processing unit to solve a computationally challenging ...

This is the second in a series of three papers that charts the history of the Lenz-Ising model (commonly called just the Ising model in the physics literature) in considerable detail, from its ...