Observation of twin beam correlations and quadrature entanglement by frequency doubling in a two-port resonator
arXiv:quant-ph/0609025 · doi:10.1209/0295-5075/78/40004
Abstract
We demonstrate production of quantum correlated and entangled beams by second harmonic generation in a nonlinear resonator with two output ports. The output beams at wavelength 428.5 nm exhibit 0.9 dB of nonclassical intensity correlations and 0.3 dB of entanglement.
5 pages, 7 figures