Abstract: Methods, systems, and devices for neural networks and neuromorphic computing are disclosed. In one implementation, a neural network includes an array of superconducting loops to store information, the superconducting loops multiply coupled to each other inductively or through Josephson junctions linking the superconducting loops, one or more input channels coupled to the array of superconducting loops to carry spiking input voltage signals to the array of superconducting loops, and one or more output channels coupled to the array of superconducting loops to carry spiking output voltage signals from the array of superconducting loops.