Jeremy O'Brien

Jeremy O'Brien

Silicon Photonic Quantum Computing – Towards Large-scale Systems

Many efforts around the world are now pursuing the ambitious goal of utility-scale, fault-tolerant quantum computing. Consistent themes are emerging across the field, as teams attempt to scale from existing small systems to the millions of qubits needed for useful applications. Systems partitioning, manufacturability, cooling power, networking, and control electronics are recurring challenges across all qubit technologies.

PsiQuantum has pursued a photonic approach, based on qubits implemented using optical photons propagating in lithographically fabricated waveguides. In this talk we will give a broad overview of recent technical progress, framed against these major scaling challenges. We will describe progress at the micro-, meso-, and macro-scale, including high-throughput testing, semiconductor manufacturing, device performance, integration, packaging, control, and cryogenic systems. We will also present new architectural results pertaining to fault-tolerant compilation.



Short biography

Jeremy O'Brien is co-founder and CEO of PsiQuantum.

PsiQuantum is building the world’s first commercially useful, large-scale general-purpose quantum computer to solve the many important problems that will forever be beyond the capabilities of any conventional computer.

Jeremy has dedicated more than 25 years to this mission, having identified quantum computing as the most profoundly world-changing technology with the potential to tackle some of the greatest challenges we face — across climate technologies, pharmaceuticals, energy and beyond. PsiQuantum is working with Fortune Global 500 companies to identify the most valuable quantum use cases for their businesses, and develop the algorithms that can be run on fault-tolerant quantum computers.

Prior to founding PsiQuantum, Jeremy was Professor of Physics and Electrical Engineering at Stanford and Bristol Universities, and Director of the Centre for Quantum Photonics. His work towards scalable quantum computing includes micro-, nano-, and atomic-scale design; fabrication and operation of superconducting and semiconductor devices; design, construction, and operation of cryogenic and ultra-high vacuum systems; design, construction, and application of low-noise electrical measurement to organic-, super-, and semi-conductor (nano)structures; and the theory of quantum computing.

Jeremy received his Ph.D. from the University of New South Wales, holds a Royal Academy of Engineering Research Chair in Emerging Technologies, and is a Fellow of the American Physical Society and the Institute of Physics.


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