Quantum Theoretical Researcher(AMO)

  • Other
  • Partial Remote
  • Full-time
  • April 13, 2026
Conditions
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10M or more /yr
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Apply from Anywhere 👍
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Relocation to Japan 👍
(Overseas visa sponsorship supported)
Requirements
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Language Requirements
Japanese: Not Required 👍
English: Business Level
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Minimum Experience
Mid-level or above

Overview

Design and analyze ion–photon interfaces that enable scalable trapped-ion quantum computing. Develop entanglement schemes and evaluate photonic architectures, incorporating realistic experimental imperfections. You will work closely with experimental teams to translate theoretical models into implementable protocols and improve photonic interconnect performance between QPU modules. This is an ideal opportunity to apply AMO physics expertise to real-world system development in the early stages of a deep tech start-up.

 

Detail

  • Design ion–photon entanglement schemes including polarization and time-bin encoding
  • Evaluate trade-offs in efficiency, fidelity, and scalability across photonic coupling architectures
  • Model photon collection using integrated optical components within ion-trap platforms
  • Analyze fidelity and entanglement rates for photonic interconnects between QPU modules
  • Develop realistic infidelity sources incorporating photon loss, mode mismatch, detector inefficiency, and other non-ideal effects
  • Design entanglement distillation protocols and quantum networking schemes for modular ion-trap architectures
  • Translate theoretical models into experimentally feasible protocols and system designs
  • Collaborate with experimental teams to interpret data, define targets, and refine photonic interconnect performance

 

Qualifications

PhD in Physics, Quantum Optics, AMO Physics, or a closely related field (Master's candidates with exceptional AMO experience may be considered)

 

Required Skills

  • Demonstrated research experience in AMO physics — laser-atom interactions, cavity QED, quantum optics, or ion-trap systems
  • Strong theoretical foundation in quantum mechanics, open quantum systems, and quantum information
  • Proficiency in numerical simulation tools (Python, MATLAB, Julia, or equivalent) for quantum optical systems

Qubitcore is a deep tech startup originating from the Okinawa Institute of Science and Technology (OIST) and founded in 2024.

The company is developing and delivering next-generation ion trap quantum computers designed to tackle problems that are computationally intensive, in fields such as drug discovery, climate modeling, financial simulations, and generative AI.

Its mission is to bring quantum computing into real-world applications with greater speed and precision.

Qubitcore’s headquarters is located in Yokohama, while its R&D center operates within the OIST campus in Okinawa. Currently, the team consists of 6 members, working closely with OIST to realize Japan's first distributed quantum computer.

Qubitcore's 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.

View Qubitcore's company page

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Quantum Theoretical Researcher(AMO) at Qubitcore
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