Universal logic gates for coupled period-doubling systems

TL;DR

This paper introduces a universal logic gate architecture using coupled period-doubling systems, applicable to classical and quantum networks, demonstrating robustness and universality across various physical platforms.

Contribution

It presents a novel protocol for implementing universal NAND and NOR gates in driven systems, adaptable to different physical implementations including classical and quantum networks.

Findings

The protocol enables precise control of node states via coupling strength and pulse duration.

It is applicable to classical networks of dissipative oscillators and quantum Kerr oscillators.

The architecture is robust against fluctuations and valid across different parameter regimes.

Abstract

We propose a general architecture for universal logic operations using NAND and NOR gates on classical information encoded in period-doubled states of periodically-driven systems. The protocol involves applying a single pulse that simultaneously couple two input nodes with an output node. We show that the states of the nodes can be precisely controlled by tuning the coupling strength and pulse duration, allowing for robust logic gate operation. To highlight the universality of the protocol, we demonstrate its applicability on different systems, such as classical networks of dissi- pative parametric oscillators (DPO), quantum networks of Kerr parametric oscillators (KPO), and the periodically-driven open Dicke lattice model (DLM) emulating discrete time crystals (DTCs). We identify the parameter regimes in which the logic gate architecture is valid, and we showcase its robustness in the presence of fluctuations.