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THE PEOPLE BEHIND THE PROGRESS

QubitWire 100

100 people shaping quantum computing.

September 2026 editionHow we selected the 100

An independent editorial selection, presented alphabetically by surname.

Search names, organizations and contributions. Results stay alphabetical.

The directory8 results

Showing 8 of 100 people

B

2 people

Founder and Chief Executive Officer

Q-CTRL

Biercuk connects experimental quantum control with software, developing ways to protect fragile quantum states and translating control research into tools for quantum-computing teams.

Control & measurementError correction
Why included?

Biercuk’s research and company-building address a practical problem that spans hardware platforms: a useful calculation must survive imperfect control and environmental noise. His experimental work on optimized dynamical decoupling showed how pulse sequences can preserve a quantum memory more effectively. Q-CTRL extends that control perspective into software used to characterize, optimize and operate quantum devices. This contribution sits alongside, rather than substitutes for, quantum error correction. The profile distinguishes his published experiments from the broader engineering and product work performed by the company he founded.

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Founder and Chief Executive Officer

Riverlane · United Kingdom

Brierley founded Riverlane to build quantum error-correction infrastructure, connecting decoding software, real-time classical hardware and the control systems needed to operate protected quantum computations.

Error correctionQuantum software
Why included?

Brierley’s role addresses a layer of quantum computing that is easy to overlook: the classical machinery that must interpret error measurements quickly enough to guide a quantum processor. Riverlane develops this infrastructure through integrated decoding and control products. As founder and chief executive, Brierley has focused an organization on making that work available across hardware approaches. His inclusion reflects that effort to turn error correction into a functioning systems component. It does not assign individual invention credit for every decoder or treat a company roadmap as proof that scalable fault tolerance has already been achieved.

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G

1 person

Director of IBM Research and IBM Fellow

IBM · United States

A superconducting-quantum-computing researcher and IBM research leader whose work includes the transmon proposal and leadership of programs connecting quantum processors with software developers.

Quantum hardwareQuantum software
Why included?

Gambetta’s work spans the physical design of quantum processors and the systems used to make them accessible. He coauthored the transmon proposal, contributing to a device design that reduced charge-noise sensitivity. IBM also identifies his leadership in cloud quantum computing and Qiskit development. The profile therefore connects a specific research contribution with an organizational role in building a developer ecosystem, while preserving the distinction between his work and the collective output of IBM teams.

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H

1 person

Director, Quantum Science Center; Distinguished Scientist, Oak Ridge National Laboratory

Oak Ridge National Laboratory · United States

Humble connects quantum processors with scientific computing, developing hybrid-system models and helping researchers gain merit-based access to emerging hardware through Oak Ridge’s quantum user program.

Industry & commercializationQuantum software
Why included?

Humble works at the boundary between quantum devices and the larger computing systems that scientists use. His research models the interfaces, timing and energy demands of hybrid execution rather than considering quantum gates in isolation. As founding director of Oak Ridge’s Quantum Computing User Program, he also helped establish a route for scientific users to access hardware. His current Quantum Science Center leadership continues this focus on integration with high-performance computing and usable research infrastructure.

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K

1 person

Senior Vice President, Fault-Tolerant Quantum Computing Software, Xanadu

Xanadu

Killoran builds software connecting quantum computation with modern programming, coauthoring PennyLane’s differentiable framework and Strawberry Fields’ tools for designing and simulating photonic quantum circuits.

Quantum softwareAlgorithms & complexity
Why included?

Killoran’s work makes quantum ideas accessible through executable software. Strawberry Fields provides a programming and simulation environment for continuous-variable photonic circuits, while PennyLane connects parameterized quantum circuits with automatic differentiation and classical optimization. Both are collaborative projects documented in their research papers. His current PennyLane profile identifies a focus on software for fault-tolerant computing at Xanadu. The combination of algorithms, interfaces and open tools gives researchers a practical route from a mathematical circuit to an experiment.

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S

1 person

Vice President of Applied Research for Quantum Computing

NVIDIA · United States

Builds the software and architecture needed to program quantum computers, with contributions to quantum development tools, algorithms and the coordination of hardware with error correction.

Quantum softwareAlgorithms & complexity
Why included?

Svore addresses the layers between a quantum algorithm and the machine that runs it. Her Microsoft research included software for representing and optimizing quantum circuits, and later work on programming infrastructure and fault-tolerant system design. She now leads applied quantum-computing research at NVIDIA. Her inclusion reflects this sustained work on usable quantum computing: languages, intermediate representations and resource-aware design make it possible to reason about programs before the required large machines exist.

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W

2 people

Founder and Chief Executive Officer

Xanadu

Combines research in continuous-variable quantum information with the creation of Xanadu, a company developing quantum computers and software around photonic approaches to quantum technology.

FoundationsQuantum hardware
Why included?

Weedbrook connects the theoretical language of continuous-variable quantum information to an industrial photonic-computing effort. His co-authored review organized Gaussian states, operations and measurements across quantum communication and computation. His founding of Xanadu then created an organization working on photonic quantum technology. The contribution is both scientific and institutional, but the two are evaluated separately: a review establishes a documented research contribution, while company leadership establishes responsibility for a continuing development program.

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Antoni van Leeuwenhoek Professor; Director, Quantum Internet Alliance

Delft University of Technology / QuTech · Netherlands

Develops the computer-science foundations of quantum networks, linking entanglement distribution and quantum communication to software that can run applications on connected quantum processors.

Quantum networksQuantum software
Why included?

Wehner works on making quantum networks programmable. Her research extends from communication and cryptography to the operating systems and architectures that coordinate quantum processors, classical messages and limited quantum memory. That systems perspective matters because connecting two devices does not automatically make a usable network. Her contribution combines a research agenda for a quantum internet with demonstrated application software, including collaborative work on an operating system tested on real quantum network nodes.

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