The posting, in Alice & Bob's own words
archived Oct 19, 2026Alice & Bob is developing the first universal, fault-tolerant quantum computer to solve the world’s hardest problems. The quantum computer we envision building is based on a new kind of superconducting qubit: the Schrödinger cat qubit 🐈 ⬛. In comparison to other superconducting platforms, cat qubits have the astonishing ability to implement quantum error correction autonomously! We're a diverse team of 250+ brilliant minds from over 35 countries united by a single goal: to revolutionise computing with a practical fault-tolerant quantum machine. Are you ready to take on unprecedented challenges and contribute to revolutionising technology? Join us, and let's shape the future of quantum computing together!
Responsibilities:
Review the state of the art in magic state distillation • Survey single- and multi-output (batched) protocols, qubit-recycling techniques and unfolded (physical-level) distillation • Identify promising candidates for Alice & Bob’s architecture, including two-stage strategies combining physical- and logical-level distillation Compile distillation protocols to Alice & Bob’s logical instruction set • Translate selected protocols into sequences of logical operations native to Alice & Bob’s architecture • Integrate magic state injection schemes and hardware connectivity constraints into the compiled protocols Design and optimise factory layouts • Propose concrete layouts for repetition-code and LDPC-code architectures • Minimise factory space-time volume by jointly optimising code distances, degree of paral-lelism and placement of operations Develop resource-estimation and noise-simulation tools • Build a tool exploring the multi-parameter design space and computing the space-time cost of candidate factories • Run circuit-level noise simulations to validate factory output fidelities and refine the resource estimates Extend the scope and communicate results • Design new distillation protocols where the exploration reveals gaps, and apply the developed tools to Clifford state factories • Document results in an internal report and, where relevant, contribute to publications or invention disclosures
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Requirements:
You are curious and rigorous, comfortable with open-ended research questions, and able to work independently while engaging regularly with the team. Education: Master’s degree (M2) in progress in physics, computer science or quantum engineering Languages: Proficient in English Experience No prior professional experience required; a previous research project or internship in quantum information is an asset Solid foundations in quantum computing and quantum information, including the stabilizer formalism • Programming in Python for scientific computing • Ability to read and critically assess research literature • Rigour, autonomy and clear written and oral communication in English
Nice to have:
• Knowledge of quantum error correction (CSS codes, repetition and LDPC codes, lattice surgery) and magic state distillation • Familiarity with classical coding theory • Experience with stabilizer simulation tools (e.g. stim) • Experience with combinatorial optimisation or SAT/SMT solvers (e.g. z3)