http://physicsworld.com/cws/article/news/2014/apr/29/quantum-telescope-could-make-giant-mirrors-obsolete
Quantum telescope could make giant mirrors obsolete “When a photon enters an aperture of a telescope, the uncertainty in its position is reduced to the radius of that aperture. Moreover, according to Heisenberg's uncertainty principle, there is a corresponding uncertainty in its momentum, which defines the photon's initial direction. As the uncertainty in position rises with the widening of the aperture, the uncertainty in its momentum falls – allowing its direction to be determined with greater precision. In other words, telescopes with larger apertures have a smaller "diffraction limit". I say eliminate Heisenberg's uncertainty principle by using weak quantum measurement. Base a photon detector on a double slit where weak quantum measurements are performed. An optical backplane with many such nanoscale photon detectors can replace the big mirrors of the telescope. And computer or hardware logic can perform photon averaging and image reconstruction of that averaged photon momentum data to build the image of a celestial object. This is the digital equivalent of the analogy curve of the mirror. I want to read the newspaper of an alien over his shoulder from two billion light years away, so let’s get quantum digital.
