Research Scientist, Superconducting Digital Electronics, Quantum AI
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Health, dental, vision, life, disability insurance
Retirement Benefits: 401(k) with company match
Paid Time Off: 20 days of vacation per year, accruing at a rate of 6.15 hours per pay period for the first five years of employment
Sick Time: 40 hours/year (statutory, where applicable); 5 days/event (discretionary)
Maternity Leave (Short-Term Disability + Baby Bonding): 28-30 weeks
Baby Bonding Leave: 18 weeks
Holidays: 13 paid days per year
Minimum qualifications:
- Master's degree in Electrical Engineering, Physics, other Engineering discipline, or equivalent practical experience.
- Research or industry experience in the design and simulation of superconductor digital logic circuits.
- Experience with one of the superconductor logic family (e.g., RSFQ, ERSFQ, HFQ, RQL, AQFP, and other related families).
- At least one published research paper or presentation at a relevant scientific conference.
Preferred qualifications:
- PhD degree in Physics, Electrical Engineering, or equivalent practical experience.
- 3 years of research or industry experience in the design and simulation of superconductor digital logic circuits.
- Experience with full digital design flow including RTL, synthesis, verification, timing closure, place-and-route, and post-fabrication validation.
- Experience with low-temperature measurements of superconductor digital logic circuits.
- Experience with superconducting quantum bits.
- Experience with computer-aided design tools and electromagnetic simulation tools.
About the job
As a Research Scientist, you will be designing and simulating superconductor digital logic circuits (such as Single Flux Auantum (SFQ) Logic and Adiabatic Quantum Flux Parametron (AQFP) Logic) for quantum bits (qubit) control and readout. You will engage in tight co-design loops with qubit designers and superconducting digital circuit designers, utilizing advanced IC design tools, numerical circuit simulation techniques and 3D electromagnetic modeling to optimize signal integrity, minimize crosstalk, manage thermal budgets in millikelvin (mK) environments, and aim performance metrics required for coherent control of qubits. This includes advancing the current of superconducting digital circuits through internal Research and Development to meet required metrics. You will also interface with fabrication engineers to help define and establish robust IC design standards that are compatible for both the sensitive superconducting qubits and the co-located cryogenic control electronics. This work is critical to building a fully integrated, modular chip stack that combines superconducting qubits with their control electronics directly within the cryogenic environment, accelerating the path toward large-scale, error-corrected quantum computers.
The full potential of quantum computing will be unlocked with a large-scale computer capable of complex, error-corrected computations. Google Quantum AI's mission is to build this computer and unlock solutions to classically intractable problems. Our roadmap is focused on advancing the capabilities of quantum computing and enabling meaningful applications.Responsibilities
- Design and simulate superconductor digital logic circuits such as single flux quantum (SFQ) logic, adiabatic quantum flux parametron (AQFP) logic, and other emerging superconductor logic families for generating waveforms tailored to qubit control and readout.
- Develop superconductor digital logic systems enabling multiplexed qubit control and readout.
- Address challenges in the large-scale integration of superconductor digital electronics such as multi-layer cell design, full-chip clock synchronization, flux trapping, and signal integrity.
- Collaborate with teams focused on design, fabrication, and measurement to validate fully integrated quantum processors.
- Publish high-quality research papers and present at leading scientific conferences to advance the state of the art and enhance publicity.
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