Abstract
We show that, for a continuous-wave input, the error probability, of bit transmission along a third-order nonlinear line with high nonlinearity, might decrease even below its input value. Quantum fluctuations are handled by means of the Wigner function. The resulting evolution equation is exactly solved with the Green-function method, which permits to calculate the density-matrix elements.
- Received 1 March 2001
DOI:https://doi.org/10.1103/PhysRevA.65.033815
©2002 American Physical Society