Cavity-QED tools for MBQC with optical binomial-codes

TL;DR

This paper introduces a cavity-QED-based toolkit for measurement-based quantum computation using optical binomial codes, enabling the generation of cluster states and measurements in photonic quantum computing.

Contribution

It presents the first cavity-QED protocol for optical binomial codes, facilitating their use in MBQC with existing optical atom-cavity systems.

Findings

Protocol for conditional cluster state generation

Implementation of Pauli measurements with binomial codes

Feasibility for optical atom-cavity architectures

Abstract

Measurement-based quantum computation (MBQC) offers a promising paradigm for photonic quantum computing, but its implementation requires the generation of specific non-Gaussian resource states. While continuous-variable encodings such as the highly complex (GKP) states have been widely studied, the much simpler binomial codes offer an experimentally accessible alternative, though they demand a distinct set of operational tools. Here, we present a toolkit for MBQC using optical binomial codes, detailing a cavity-QED protocol for conditional generation of cluster states and the implementation of Pauli measurements. Our work proposes the first steps for existing optical atom-cavity architectures to lay the groundwork for their use in quantum computation.