Molecular machines for quantum error correction

TL;DR

This paper proposes a conceptual model of a quantum robot inspired by biological molecular machines to delay decoherence in quantum systems, with a specific implementation using laser-dressed Rydberg atoms.

Contribution

It introduces a novel active quantum error correction model inspired by biological machines and details a feasible implementation with Rydberg atoms.

Findings

The model can partially protect logical qubits against single-qubit errors.

Simulation shows the dynamics of the quantum robot effectively delays decoherence.

Proposes a practical implementation using laser-dressed Rydberg atoms.

Abstract

Inspired by biological molecular machines we explore the idea of an active quantum robot whose purpose is delaying decoherence. A conceptual model capable of partially protecting arbitrary logical qubit states against single physical qubit errors is presented. Implementation of an instance of that model - the entanglement qubot - is proposed using laser-dressed Rydberg atoms. Dynamics of the system is studied using stochastic wavefunction methods.