QUPosium2026

The 4th International Symposium on Quantum-field Measurement Systems for Studies of the Universe, Particles, and Other Applications (QUPosium2026) will be held December 8–10, 2026 in Tsukuba, Japan . The event is hosted by WPI-QUP , a World Premier International Research Center at the High Energy Accelerator Research Organization (KEK), promoted by the Japanese government. QUP pursues an axis complementary to the high-energy frontier: the exploration of extremely weakly coupled phenomena using ultra-sensitive quantum sensors. The QUP now works through three scientific pillars, supported by theoretical research and a horizontal technology platform for detector design, fabrication, and charact