Absence of Long-Range Coherence in the Parametric Emission from Photonic Wires

Details Absence of Long-Range Coherence in the Parametric Emission from Photonic Wires Absence of Long-Range Coherence in the Parametric Emission from Photonic Wires

2005-12-19

arxiv.org/abs/cond-mat/0512464v3

Physics

Condensed Matter

Other Condensed Matter

6 pages, 3 figures

Scientific paper

10.1103/PhysRevB.74.245316

We analytically investigate the spatial coherence properties of the signal emission from one-dimensional optical parametric oscillators. Because of the reduced dimensionality, quantum fluctuations are able to destroy the long-range phase coherence even far above threshold. The spatial decay of coherence is exponential and, for realistic parameters of semiconductor photonic wires in the strong exciton-photon coupling regime, it is predicted to occur on an experimentally accessible length scale.

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