Korean Institute of Science and Technology (KIST) scientists have successfully demonstrated the world’s first ultra-precise, ultra-sensitive distributed quantum sensor network sensitive enough to approach the Heisenberg limit, where distinguishing the desired signal from the noise becomes impossible.
The approach is also among the first in the field to conduct experiments that simultaneously employ multiple quantum entangled photons, enabling unprecedented sensitivity and precision beyond single-entangled-photon approaches.
While previous approaches to a distributed quantum sensor network aimed to increase measurement precision, the new approach is the first to leverage this unprecedented level of precision for higher-resolution imaging. Using several quantum sensors in concert is similar to astronomers employing several observatories to measure a single phenomenon with more detail than any individual observatory could achieve on its own.
The research team behind the accomplishment suggests their approach could improve applications from space observation to medical imaging by offering previously unattainable fine details collected from multiple sensors working together rather than a lone sensor.
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