Physicists just did the "impossible" and created a quantum hologram

Physicists just did the "impossible" and created a quantum hologram

Until recently, scientists didn’t think it could be done. They thought the fundamental laws of physics would forbid it. But a persistent group of scientists at the University of Warsaw have now accomplished the impossible: They created a hologram of a solitary particle of light. This accomplishment is ushering in a new era of quantum holography, which will give scientists a new way of looking at quantum phenomena. Unlike the photography, holography recreates the spatial structure of objects, giving us their 3D shapes. The technique takes advantage of something called classical interference, which is when two waves meet and form a new wave. But classical interference is impossible with photons since their phases (a property of waves) are constantly fluctuating. So the Warsaw physics tried to give quantum holograms a taste of their own medicine by using quantum interference, in which photons’ wave functions (which have to do with the probability of the particle being in a particular state) interact. Read More: ScienceAlert
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