The company

C12 Quantum Electronics develops reliable & application-specific quantum computers, to solve highly complex computing tasks, currently out of reach of even most powerful supercomputers.

Building a quantum computer still needs innovators ready to tackle exciting challenges. C12 founders are convinced that only a new material for the qubit will bring a technological breakthrough.

C12 Quantum Electronics uniquely uses carbon nanotubes as the fundamental building blocks of its quantum processor. This high-purity material minimizes errors, radically improves performance and reduces hardware overhead for fault-tolerant computing. Combined with well-established semiconductor techniques, carbon nanotubes will help scale quantum computing, just as silicon revolutionized classical computing.

Founded in 2020, C12 Quantum Electronics is a fast-growing start-up, having raised a seed round of USD 10 million in June 2021 and building its own lab space in the center of Paris.

The job

You will set up the architecture of a five-qubit chip with all-to-all connectivity between spin qubits. You will collaborate closely with other teams which are working on providing design of the quantum on-chip circuits, device fabrication, theoretical work on our qubits, and software engineering support.

Your job will involve :

• Designing the procedures for state preparation, 1 and 2-qubit gates and multi-qubit readout
• Conducting characterization and benchmarking experiments
• Supervising the design of the experiments to improve gate fidelities and test all-to-all connectivity schemes
• Supervising the design and test of microwave circuit layout
• Supervising the specification, maintenance, and installation of RF control bench at room temperature and at cryogenic temperature
• Supervising the automation of qubit calibration and multi-qubit control
• Sharing expertise and findings with other team members

Requirements

• PhD in Electrical engineering, Physics, Applied Physics, or other related field (or demonstrated industry experience)
• Minimum 2+ years of postdoc or R&D work involving microwave electronics and measurements of superconducting or spin qubits. Experience with multi qubits electronic circuits is seen as an advantage
• Basic understanding of good software development practices, Python language, and version control systems
• Ability to distil and communicate scientific information effectively with the wider team
• Good communication in English (verbal and written)
• Demonstrated leadership skills are seen as an advantage

Benefits

You should join us if :

• You want to contribute to achieve landmark results in quantum computing, making a difference in the emerging quantum technologies
• You want to work within a 25-people team with various backgrounds in nano-fabrication, quantum electronics and carbon nanotube science to materialize the vision of a revolutionary quantum computing processor
• You want to thrive in a exceptional scientific environment with several industrial and academic partners
• You relate to our values (excellence, scientific integrity, diversity, curiosity and care) and want to help us define our product-focus culture and ambition to accelerate