Quantum Buffer Design Using Petri Nets

TL;DR

This paper presents a novel quantum buffer design framework using simplified Petri nets, including a quantum S-R flip-flop, validated through IBM quantum computing platforms.

Contribution

It introduces a simplified quantum Petri net model and designs quantum buffers and flip-flops, extending classical buffer concepts to quantum computing.

Findings

Quantum S-R flip-flop designed with CNOT and SWAP gates

Quantum buffers implemented and validated on IBM quantum hardware

Designs are scalable for multiple qubits

Abstract

This paper introduces a simplified quantum Petri net (QPN) model and uses this model to generalize classical SISO, SIMO, MISO, MIMO and priority buffers to their quantum counterparts. It provides a primitive storage element, namely a quantum S-R flip-flop design using quantum CNOT and SWAP gates that can be replicated to obtain a quantum register for any given number of qubits. The aforementioned quantum buffers are then obtained using the simplified QPN model and quantum registers. $\!\!$The quantum S-R flip-flop and quantum buffer designs have been tested using OpenQASM and Qiskit on IBM quantum computers and simulators and the results validate the presented quantum S-R flip-flop and buffer designs.