Beating the Standard Quantum Limit for Binary Constellations in the Presence of Phase Noise

30 Sep 2019 Kunz L. DiMario M. T. Becerra F. E. Banaszek K.

Unconventional receivers enable reduction of error rates in optical communication systems below the standard quantum limit (SQL) by implementing discrimination strategies for constellation symbols that go beyond the canonical measurement of information-carrying quantities such as the intensity or quadratures of the electromagnetic field. An example of such a strategy is presented here for average-power constrained binary constellations propagating through a phase noise channel... (read more)

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  • QUANTUM PHYSICS