Back Cover: Coherent Ising Machines with Optical Error Correction Circuits (Adv. Quantum Technol. 11/2021)
Sam Reifenstein, Satoshi Kako, Farad Khoyratee, Timothee G. Leleu, Y. Yamamoto · Advanced Quantum Technologies · 2021
The graph on the cover shows the evolution of average energies of many trajectories in a coherent Ising machine (CIM). In some cases, the final state of CIM reaches a ground state (solution), while in some other cases the CIM states are trapped in the first, second and third excited states (non-solution). The CIM is a noise-driven stochastic computing machine and this image shows such a random character. For further information see article number 2100077 by Yoshihisa Yamamoto and co-workers.