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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

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Published on: May 30, 2014

Superbunched bright squeezed vacuum state.

T Sh Iskhakov1, A M Pérez, K Yu Spasibko

  • 1Max Planck Institute for the Science of Light, Guenther-Scharowsky-Str. 1/Bldg. 24, Erlangen 91058, Germany. Timur.Iskhakov@mpl.mpg.de

Optics Letters
|June 5, 2012
PubMed
Summary
This summary is machine-generated.

We studied bright squeezed vacuum states with up to 10(13) photons per mode. Photon bunching and superbunching effects were observed in single-mode parametric down conversion radiation.

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Area of Science:

  • Quantum optics
  • Nonlinear optics

Background:

  • Bright squeezed vacuum states are crucial for quantum information processing.
  • Parametric down conversion (PDC) is a key source for generating non-classical light states.

Purpose of the Study:

  • To experimentally investigate the statistical properties of bright squeezed vacuum states.
  • To analyze photon statistics in high-intensity single-mode PDC radiation.

Main Methods:

  • Generation of bright squeezed vacuum states using high-gain parametric down conversion (PDC).
  • Measurement of second-order intensity correlation functions (g(2)) using analog detectors.
  • Characterization of photon statistics including bunching and superbunching.

Main Results:

  • Experimental observation of photon bunching and superbunching in single-mode PDC radiation.
  • Demonstration of statistical properties for states with up to 10(13) photons per mode (10 μJ per pulse).

Conclusions:

  • The study provides experimental insights into the statistical behavior of bright squeezed vacuum states.
  • Results confirm the presence of photon bunching and superbunching in high-intensity PDC sources, relevant for quantum technologies.