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Quantum Physicist in AMO & Quantum Theory

InfleqtionChicago, Illinois, United States
On-site Full-time $115K/yr - $165K/yr

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Experience Level

Mid to Senior

Qualifications

QualificationsPhD in atomic physics, quantum physics, theoretical physics, or a related discipline; or equivalent professional experience (4+ years). We encourage those with significantly more experience to apply; we will also consider candidates for the Senior Quantum Physicist level. Solid foundation in AMO physics and quantum mechanics, particularly in atom-light interactions. Proven experience in modeling and analyzing error mechanisms in quantum systems and gates using analytical techniques and numerical simulations, with a focus on translating insights into enhanced designs. Strong scientific programming skills (Python is essential; familiarity with numerical, optimization, or simulation libraries is preferred). Ability to work collaboratively with experimental physicists and hardware engineers, effectively bridging theoretical models, experimental outcomes, and system-level implementations.

About the job

Infleqtion is dedicated to pioneering atom-based quantum technologies that provide unparalleled advancements in sensing and computing capabilities. As a cutting-edge deep-tech startup, we prioritize a results-oriented, dynamic, and customer-centric approach to innovation. We are in search of highly motivated, energetic professionals with outstanding problem-solving abilities and technical expertise to propel our Quantum Computing initiatives forward. This position is theory-centric, and we warmly welcome applications from physicists specializing in theoretical or experimental Atomic, Molecular, and Optical (AMO) physics, especially those experienced in the coherent control of quantum systems and the design and characterization of quantum gates.

Key Responsibilities

  • Develop theoretical models for neutral-atom quantum systems to guide system architecture, gate design, and hardware specifications.
  • Collaborate with experimental physicists and hardware engineers to convert physical models and performance objectives into practical system and subsystem requirements.
  • Assess and quantify error mechanisms in quantum gates, including decoherence, control errors, crosstalk, and noise from lasers and atoms.
  • Design, simulate, optimize, and validate protocols for quantum gates, calibration, error mitigation, and compilation to enhance fidelity, robustness, and scalability.
  • Develop and maintain simulation, analysis, and optimization software to predict system behavior and inform experimental design.
  • Assist experimental initiatives by interpreting data, diagnosing unexpected behaviors, and suggesting theory-driven adjustments or design modifications.
  • Independently initiate and execute theoretical and modeling projects with clear objectives and constraints; define problems, prioritize strategies, and deliver results within realistic timeframes.
  • Mentor and guide junior team members, including supervising interns.

About Infleqtion

Infleqtion is at the forefront of developing innovative atom-based quantum technologies that promise substantial advancements in various applications, including sensing and computing. Our team thrives in a fast-paced, results-driven environment, where creativity and customer focus are paramount. Join us as we shape the future of quantum technologies.

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