Noise reducing encoding strategies for spin chains

TL;DR

This paper introduces a noise-reducing encoding method for quantum spin chains that improves operation fidelity using minimal qubits, offering a practical solution when full error correction isn't feasible.

Contribution

The paper proposes a simple, flexible encoding technique that enhances quantum operation fidelity in spin chains without requiring extensive qubit resources.

Findings

Significant fidelity improvements demonstrated

Applicable to various Hamiltonian-driven systems

Easy to implement with near-optimal performance

Abstract

We present an encoding technique that reduces the effects of noise on quantum spin systems whose operation is driven by Hamiltonian evolution. This technique is widely applicable, being most relevant to the scenarios where there are insufficient qubits to permit full scale error correction. Instead, our technique can be implemented over small numbers of qubits and still leads to noticeable improvements in the fidelity of operations. The encoding scheme is easy to implement, flexible with respect to choice of Hamiltonian, and close to optimal.