Tuning quantum correlations with intracavity photonic crystals

Journal Article · Thu Sep 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.033832· OSTI ID:22072197

Castro, Maria M. de; Gomila, Damia; Zambrini, Roberta ^[1]; Garcia-March, Miguel Angel ^[2]

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1. IFISC, Institute for Cross-Disciplinary Physics and Complex Systems (CSIC-UIB), Campus UIB, E-07122 Palma de Mallorca (Spain)
2. Department of Physics, Colorado School of Mines, Golden, Colorado 80401 (United States)

We show how to tune quantum noise in nonlinear systems by means of periodic spatial modulation. We prove that the introduction of an intracavity photonic crystal in a multimode optical parametric oscillator inhibits and enhances light quantum fluctuations. Furthermore, it leads to a significant noise reduction in field quadratures, robustness of squeezing in a wider angular range, and spatial entanglement. These results have potential benefits for quantum imaging, metrology, and quantum information applications and suggest a control mechanism of fluctuations by spatial modulation of interest also in other nonlinear systems.

• OSTI ID: 22072197
• Journal Information: Physical Review. A, Vol. 84, Issue 3; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKGROUND NOISE
CORRELATIONS
ELECTROMAGNETIC RADIATION
FLUCTUATIONS
MODULATION
NONLINEAR PROBLEMS
PARAMETRIC OSCILLATORS
PERIODICITY
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION