What's the difference between a newspaper and a history book? Time.
On Wed, Apr 30, 2014 at 1:24 PM, David Roberson <[email protected]> wrote: > Too bad that you would be reading very old news Axil! By this time that > alien and likely his species has become extinct. > > You need a better link. > > Dave > > > > -----Original Message----- > From: Axil Axil <[email protected]> > To: vortex-l <[email protected]> > Sent: Wed, Apr 30, 2014 12:47 pm > Subject: [Vo]:let’s get quantum digital > > > 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. > > > >
