Observing the quantum behavior of light is a big part of Alan Migdall’s research at the Joint Quantum Institute. Many of his experiments depend on observing light in the form of photons—-the particle complement of light waves—-and sometimes only one photon at a time, using “smart” detectors that can count the number of individual photons in a pulse.
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Getting sharp images from dull detectors: Operating in the fuzzy area between classical and quantum…