Most of the existing optical logic gates cannot meet all the requirements. In the state-of-the-art research works, a single logic gate or simple logic circuits consisting of a small number of ...

These logic gates can be implemented and reconstructed by building and switching the Dzyaloshinskii–Moriya interaction (DMI) chirality barrier on a racetrack memory.

The fun part about logic gates is that there are so many ways to make them, with each approach having its own advantages and disadvantages. Although these days transistor-transistor logic (TTL) is ...