Researcher (Theoretical/AMO)
Confirmed on the employer's own hiring board on Oct 29, 2026. First seen by Alion on Oct 26, 2026.
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Researcher (Theoretical/AMO)
Researcher (Theoretical/AMO)
Job Title: Quantum Researcher
Job Summary:
Lead the photonic interconnect theory effort at the heart of our distributed architecture. Design and analyze ion-photon entanglement generation schemes, model photonic link performance, and develop quantum networking protocols that connect our QPU modules. Work hand-in-hand with experimentalists to translate models into real hardware performance.
Full Time
Okinawa
Areas of expertise: Quantum Physics, Quantum Optics, Quantum Information Science
Job Description (Responsibilities)
Design and analyze ion-photon entanglement generation schemes, including evaluation of polarization and time-bin encoding strategies
Build quantitative models of photonic link fidelity and entanglement generation rate between QPU modules
Characterize non-ideal physical effects - photon loss, mode mismatch, detector inefficiencies - and incorporate them into system-level performance estimates
Design and evaluate entanglement distillation protocols optimized for ion-photon systems
Develop quantum networking and repeater schemes compatible with our modular, multi-QPU architecture
Translate theoretical models into experimentally testable protocols with clear performance targets for the hardware team
Collaborate with experimentalists to interpret measurement results and iterate on models
Contribute to publications, conference presentations, and IP development
Required Qualifications
PhD in Physics, Quantum Optics, AMO Physics, or closely related field (Master's with exceptional AMO research track record also considered)
Proven experience in theoretical research
Required Skills
PhD in Physics, Quantum Optics, AMO Physics, or closely related field (Master's with exceptional AMO research track record also considered)
Research experience in AMO physics - laser-atom interactions, cavity QED, quantum optics, or trapped-ion systems
Strong theoretical grounding in quantum mechanics, open quantum systems, and quantum information
Proficiency in numerical simulation for quantum optical systems (Python, MATLAB, Julia, or equivalent)
Working proficiency in English - daily collaboration is conducted in English
Preferred Skills
Hands-on or theoretical experience with trapped-ion or neutral-atom photon interfaces
Knowledge of photonic qubit encoding strategies and their trade-offs
Familiarity with quantum repeater architectures or multi-node entanglement distribution
Background in entanglement distillation or quantum error purification protocols
Track record of peer-reviewed publications
Education
PhD (completed or expected) in a relevant field (Master's degree also acceptable)
Job Information
Job Type
Full Time
Location
Okinawa
Research Areas
Quantum Physics, Quantum Optics, Quantum Information Science
Location
Onna, Okinawa, Japan
Work Style
Remote work is negotiable depending on responsibilities. Domestic and international travel may be required.
Benefits
Full social insurance coverage (health, pension, employment, and workers' compensation)
Annual health checkups
Ready to Apply?
Join our team and help shape the future of quantum computing
ApplyAbout Qubitcore
Founded in 2024, Qubitcore Inc. is a deep tech startup originating from the Okinawa Institute of Science and Technology (OIST). We are developing and delivering next-generation quantum computers designed to tackle problems that are computationally intensive for classical systems-such as drug discovery, climate modeling, financial simulations, and generative AI. Our mission is to bring quantum computing into real-world applications with greater speed and precision.
Our headquarters is located in Yokohama, while our R&D center operates within the OIST campus in Okinawa. Currently, our team consists of 3-5 members (including part-time collaborators), working closely with OIST to realize Japan's first distributed quantum computer.
Our distributed architecture connects multiple quantum processing units (QPUs) via photonic links to form a high-performance, networked quantum system. This approach enables large-scale quantum computation that was previously impractical, opening new frontiers in quantum technology.