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Kyoto University · Department of Physics

Shion Chen

Associate Professor

I am an experimental physicist working on particle physics and quantum sensing. My research focuses on searching for new physics at the energy-frontier particle colliders, and exploring the sensing of ultimately feeble signal leveraged by the novel superconducting quantum sensing devices.

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Research

In the High Energy Physics Lab at Kyoto University, I'm currently hosting these two groups:

ATLAS detector at CERN

Kyoto ATLAS Group

Energy-frontier physics at the LHC-ATLAS experiment

My group's works in ATLAS include a broad spectrum of physics analyses from various supersymmetric particle searches, higgs physics with taus, quantum state tomography using B-mesons, to measurement of anti-nuclei production in jets. In the supersymmetric particle searches, we have been particularly focusing on higgsinos and other electroweakinos with compressed mass spectra, through the unique expertise of low-momentum particle reconstruction.

The group has also been contributing to the operation and upgrade of the muon trigger system in the ATLAS detector.

Superconducting quantum device in a copper cavity

Kyoto HE Quantum Group

Dark matter/gravitational wave searches using quantum sensors

Qubits developed for quantum computers are inherently good sensors. Driven by the notion, one of my current greatest interests is utilizing qubits as sensors for detecting new particles that have the feeblest interaction with ordinary matter, such as dark matter. In 2024, I with my colleagues have founded the DarQ experiment to kick off the experimental effort; developing dedicated qubit sensors, studying new quantum sensing protocols, building the detector system, and conducting the actual search.

Beside being the main driving force of DarQ, our quantum group also started exploring another frontier targeting high-frequency gravitational waves by extending the techniques.

Earlier work:

  • Transition Radiation Tracker operation/upgrade in ATLAS
  • Calorimeter development for ILC/ILD
  • Tests of Bell’s inequality in collider experiments

Full CV

Contact

Department of Physics, Kyoto University
Kitashirakawa-Oiwakecho, Kyoto, Japan