26th Australian Institute of Physics Congress and the Australian and New Zealand Conference on Optics and Photonics

Session

AIP QST: Photonic quantum computing & bosonic codes

QST

10 Dec 2026, 11:00

Belinda Hutchinson Building (The University of Sydney )

281. Extensible universal photonic quantum computing with nonlinearity

Dr Raj Patel (Imperial College London)

10/12/2026, 11:00

AIP | Quantum Science and Technology (QST)

Invited talk

Achieving universal, fault-tolerant photonic quantum computing requires architectures that seamlessly integrate scalable linear circuits with strong nonlinear resources. Historically, incorporating single-photon-level nonlinearities across large-scale linear networks has been a major bottleneck, limiting most optical processors to non-universal linear operations. To overcome this, we introduce...

384. Modelling complex quantum photonic circuits: a top-down introduction

Tim Weiss (RMIT University)

10/12/2026, 11:30

AIP | Quantum Science and Technology (QST)

Contributed Oral

Quantum photonic circuits are becoming increasingly complex as the field moves from isolated proof-of-principle demonstrations toward real-world, application-grade architectures. This complexity is not only a question of scale, but increasingly arises from the co-integration of components governed by qualitatively different physical mechanisms, including passive interferometric networks,...

205. A unified optical platform for non-Gaussian and fault-tolerant Gottesman-Kitaev-Preskill states

Ozlem Erkilic (University of Technology Sydney)

10/12/2026, 11:45

AIP | Quantum Science and Technology (QST)

Contributed Oral

Non-Gaussian optical states are essential resources for continuous-variable quantum technologies, enabling fault-tolerant quantum computation, enhanced quantum communication protocols, and quantum metrology beyond the classical limit. However, their experimental generation typically relies on high-photon-number Fock states or strong optical non-linearities, making scalable implementations...

143. Tailored decoding of Gottesman–Kitaev–Preskill error correction under realistic noise

Tom Harris (RMIT)

10/12/2026, 12:00

AIP | Quantum Science and Technology (QST)

Contributed Oral

The Gottesman-Kitaev-Preskill (GKP) code is a bosonic encoding for fault-tolerant quantum computing that protects a qubit using the phase space of a harmonic oscillator. A key feature of the code is that small continuous displacement errors can be converted into effective qubit-level Pauli errors. In ideal GKP error correction, the measured syndrome is usually decoded by standard binning: the...

664. Quantifying Pauli Errors in Single-Photon Resource-State Generation

Yuktee Gupta

10/12/2026, 12:15

AIP | Quantum Science and Technology (QST)

Contributed Oral

We propose a scheme to compute Pauli error rates in photonics-based quantum error correction
using experimental observables of single photons produced from quantum emitters. We show that
first-order coherence measurements and first-order cross correlations—which can be implemented
using photon counting—can extract single-photon and entangled single-photon wavefunctions in the
presence of...