Oxford Quantum
Society

Oxford's student-led society for quantum information science. Each week in term, the people building quantum technology come and tell us what they have just worked out. Every department welcome, no background assumed.

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Who We Are

OQS is Oxford's student-led society for quantum information science. We bring together undergrads, postgrads, and researchers from across the university who are curious about quantum topics. We host weekly talks from leading quantum scientists, covering everything from quantum computing and quantum cryptography to the fundamental ideas behind quantum mechanics and information.

Whether you're exploring quantum mechanics for the first time or publishing in the field, OQS provides the platform to learn, connect, and shape the quantum future.

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01 · Research

Cutting-edge research, up close

OQS sits at the frontier of quantum information, from quantum error correction and photonic networks to the cryptography built to outlast a quantum computer. Once a week, we bring that frontier into a lecture theatre.

You don't just hear the results. You follow the reasoning, the dead ends, and the questions the field still can't answer, straight from the people working on them.

02 · Community

A society without a single department

Quantum information doesn't belong to physics, or computer science, or maths, or engineering. It lives in the overlap, so OQS is built from all of them at once.

Undergraduates sit beside postgraduates and researchers. The person next to you might be proving a theorem, wiring a cryostat, or seeing a qubit for the very first time.

03 · Speakers

World-class voices, every week

We host principal investigators and research leaders from Oxford, Cambridge, TUM, UCL and beyond. They're the names behind the results you read about.

Each talk is a signal from the edge of the field: what's just been discovered, what's about to be, and where quantum information is heading next.

Live from the course

Prove that reality isn't local, with data you make yourself

In 1964 John Bell showed that if the world works the way common sense insists it does (things have properties before you look, and nothing influences anything faster than light), then a certain correlation between two distant measurements can never exceed S = 2. It's not a quantum prediction. It's a ceiling on every possible theory of that kind, and it holds no matter what the particles are made of.

Every point in the panel below is a measurement generated live in your browser, from a real simulated Bell pair. No canned animation, no fixed answer. Watch S climb past 2 and settle at 2√2 ≈ 2.828. Common sense doesn't survive the experiment. Quantum mechanics does.

This is a simulation, and a simulation can only show you what the theory predicts. The experiment has been done for real, most decisively in 2015, in three labs at once, with every known loophole closed. It won the 2022 Nobel Prize in Physics. The number came out the same.

Run the full experiment in the course

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In partnership with OQI Oxford Quantum Institute

Oxford QuantumSociety