We show that any optical dissipative structure supported by degenerate optical parametric oscillators contains a special transverse mode that is free from quantum fluctuations when measured in a balanced homodyne detection experiment. The phenomenon is not critical as it is independent of the system parameters and, in particular, of the existence of bifurcations. This result is a consequence of the spatial symmetry breaking introduced by the dissipative structure. Effects that could degrade the squeezing level are considered.
@article{arxiv.quant-ph/0405148,
title = {Quantum squeezing of optical dissipative structures},
author = {Isabel Perez-Arjona and Eugenio Roldan and German J. de Valcarcel},
journal= {arXiv preprint arXiv:quant-ph/0405148},
year = {2009}
}
Comments
4 pages and a half, 1 fugure. Version to appear in Europhysics Letters