Demonstration of measurement-only blind quantum computing

TL;DR

This paper demonstrates a proof-of-principle implementation of measurement-only blind quantum computing using photonic four-qubit cluster states, highlighting its potential for secure quantum networks with minimal client requirements.

Contribution

It provides the first experimental realization of measurement-only blind quantum computing, showcasing practical feasibility and security features.

Findings

Successful generation of four-qubit cluster states

Implementation of measurement-based quantum computation

Verification of device-independent blindness

Abstract

Blind quantum computing allows for secure cloud networks of quasi-classical clients and a fully fledged quantum server. Recently, a new protocol has been proposed, which requires a client to perform only measurements. We demonstrate a proof-of-principle implementation of this measurement-only blind quantum computing, exploiting a photonic setup to generate four-qubit cluster states for computation and verification. Feasible technological requirements for the client and the device-independent blindness make this scheme very applicable for future secure quantum networks.