Nonvolatile bistable memory and Ising machine based on Micro-Electro-Mechanical Systems.

We propose nonvolatile binary stable states based on microelectromechanical systems (MEMS). They may be used as MEMS memory, where the bistable memory is the buckling direction of a plate of a capacitor. The binary memory is switched by applying a voltage to the MEMS. Furthermore, we propose an Ising model by making a series of buckled MEMS. It is a great merit of this mechanism that the annealing process is automatically carried out due to the damping effect of the spring. We find a duality relation between the parallel-plate MEMS under constant-voltage condition and the comb-teeth MEMS under constant-charge condition.