AI Insight
Researchers have developed an ultra-sensitive quantum sensor capable of detecting energy levels below one zeptojoule, an extraordinarily small unit of energy equivalent to one sextillionth of a joule. The device exploits superconducting materials, which lose electrical resistance at near-absolute-zero temperatures and respond measurably to minute thermal fluctuations. This sensitivity enables the sensor to register individual photons and potentially detect weakly interacting particles associated with dark matter.
Why it matters
This technology could advance quantum computing by improving readout precision and enable astrophysicists to search for dark matter candidates such as axions or weakly interacting massive particles, which have so far evaded detection by conventional instruments.
Researchers have built an ultra-sensitive sensor capable of detecting unimaginably small amounts of energy — below one zeptojoule. The breakthrough relies on fragile superconducting materials that react to even the slightest temperature change. This level of precision could improve quantum computers, enable photon counting, and even help scientists detect elusive dark matter particles from space.
Source: New quantum sensor could count individual photons and hunt dark matter