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  • Open Access

Superconducting Cloud Chamber

Bo Gao1,2, Jie Sheng3,1,*, and Tsutomu T. Yanagida3,1

  • *Contact author: jie.sheng@ipmu.jp
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Phys. Rev. Lett. 136, 061801 – Published 9 February, 2026

DOI: https://doi.org/10.1103/r3rb-zhyl

Abstract

We propose a new particle-trajectory detector composed of Josephson junctions, named the superconducting cloud chamber. By measuring the quantum phase difference, this device can detect charged particles with extremely low kinetic energy, providing a new method for detecting slow-moving particles. It can also be utilized to detect millicharged dark matter particles thermalized with the Earth’s environment within the mass range of 103∼1010  GeV.

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Outline

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Phys. Rev. Lett. 136, 061801– Published 9 February, 2026
  • Received 28 February 2025
  • Revised 25 May 2025
  • Accepted 6 January 2026
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