All-optical flip-flops are key components for photonic digital processing in next generation optical networks and optical computing. In most digital applications signals synchronization with an external reference clock is a basic feature. In this paper an entire set of all-optical clocked flip-flops, including SR, D, T, and JK types is proposed and demonstrated. Each configuration employs a sin...

Optical logic gates have been proposed and demonstrated on a function programmable waveguide engine constructed using buried silicon nitride waveguides in polymer set of thermal electrodes. The device can perform AND or OR operations for the input signals A B, each containing two bits information, parallel. signals, form binary current values electronic domain, are applied to subset electrodes,...

Rydberg atom arrays offer flexible geometries of strongly interacting neutral atoms, which are useful for many quantum applications such as simulation and computation. Here, we consider an all-optical gate-based computing scheme the arrays, in auxiliary atoms (wire atoms) used a mean quantum-mechanical remote-couplings among data-qubit optical individual-atom addressing data wire is to construc...

Today, the use of CMOS technology for the manufacture of electronic ICs has faced many limitations. Many alternatives to CMOS technology are offered and made every day. Quantum-dot cellular automata (QCA) is one of the most widely used. QCA gates and circuits have many advantages including small size, low power consumption and high speed. On the other hand, using special digital gates called re...