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Reading boundless error-free bits using a single photon
2013
Physical Review A. Atomic, Molecular, and Optical Physics
We show that nature imposes no fundamental upper limit to the number of information bits per expended photon that can, in principle, be read reliably when classical data is encoded in a medium that can only passively modulate the amplitude and phase of the probe light. We show that with a coherent-state (laser) source, an on-off (amplitude-modulation) pixel encoding, and shot-noise-limited direct detection (an overly-optimistic model for commercial CD/DVD drives), the highest photon information
doi:10.1103/physreva.87.062306
fatcat:me2xndkf2necrjm4umtwxfuwq4