Quantum Compilation Intern M/F

Location: Paris, France; hybrid workplace.

Company

Alice & Bob is developing a universal, fault-tolerant quantum computer based on superconducting Schrödinger cat qubits with autonomous quantum error correction.

What you will do

• Review magic state distillation research, including single- and multi-output protocols, qubit recycling, unfolded physical-level distillation, and two-stage strategies.
• Compile selected distillation protocols into Alice & Bob’s logical instruction set, incorporating magic state injection and hardware connectivity constraints.
• Design and optimise repetition-code and LDPC-code factory layouts by jointly considering code distances, parallelism, operation placement, and space-time volume.
• Develop resource-estimation tools and run circuit-level noise simulations to evaluate factory costs and output fidelities.
• Design new distillation protocols where needed and potentially extend the tools to Clifford state factories.
• Document results in internal reports and contribute to publications or invention disclosures where relevant.

Requirements

• Master’s degree (M2) in progress in physics, computer science, or quantum engineering.
• Proficiency in English.
• No prior professional experience is required; previous research or internship experience in quantum information is an asset.
• Solid foundations in quantum computing and quantum information, including the stabilizer formalism.
• Programming skills in Python for scientific computing.
• Ability to read and critically assess research literature.
• Rigorous, autonomous approach and clear written and oral communication in English.
• Curiosity and comfort with open-ended research questions, independent work, and regular collaboration with the team.

Nice to have

• Knowledge of quantum error correction, including CSS codes, repetition codes, LDPC codes, lattice surgery, and magic state distillation.
• Familiarity with classical coding theory.
• Experience with stabilizer simulation tools such as Stim.
• Experience with combinatorial optimisation or SAT/SMT solvers such as Z3.

Culture & Benefits

• Internship in a diverse team of more than 250 people from over 35 countries.
• 1 day off per month.
• Half of transportation costs covered in accordance with French law.
• Meal vouchers through Swile and access to a fully equipped, regularly stocked kitchen.
• Early-stage startup environment with opportunities to share knowledge, develop ideas, and grow.