Towards Fault Tolerant Adiabatic Quantum Computation

TL;DR

This paper proposes a hybrid approach combining dynamical decoupling, quantum codes, and energy gaps to enhance the fault tolerance of adiabatic quantum computation against decoherence and control errors.

Contribution

It introduces a novel hybrid methodology for protecting AQC, including error bounds and practical implementation with two-body interactions.

Findings

Decoherence-protected AQC against local noise demonstrated

Error bounds for the protection scheme derived

Protection achieved with at most two-body interactions

Abstract

I show how to protect adiabatic quantum computation (AQC) against decoherence and certain control errors, using a hybrid methodology involving dynamical decoupling, subsystem and stabilizer codes, and energy gaps. Corresponding error bounds are derived. As an example I show how to perform decoherence-protected AQC against local noise using at most two-body interactions.