<p>➀ UZH researchers developed a superconducting nanowire single-photon detector (SNSPD) to search for light dark matter particles below 1 MeV, achieving sensitivity to 1/10th of an electron's mass;</p><p>➁ The device detects photon-induced changes in superconducting nanowires, marking the first exploration of ultra-low-mass dark matter with this technology;</p><p>➂ Future plans include optimizing SNSPD for smaller particle detection and underground deployment to mitigate background radiation interference.</p>