Full quantum state reconstruction of symmetric two-mode squeezed thermal states via spectral homodyne detection and a state-balancing detector

@article{Cialdi2016FullQS,
  title={Full quantum state reconstruction of symmetric two-mode squeezed thermal states via spectral homodyne detection and a state-balancing detector},
  author={Simone Cialdi and Carmen Porto and Daniele Cipriani and Stefano Olivares and Matteo G. A. Paris},
  journal={Physical Review A},
  year={2016},
  volume={93},
  pages={043805}
}
We suggest and demonstrate a scheme to reconstruct the symmetric two-mode squeezed thermal states of spectral sideband modes from an optical parametric oscillator. The method is based on a single homodyne detector and active stabilization of the cavity. The measurement scheme have been successfully tested on different two-mode squeezed thermal states, ranging from uncorrelated coherent states to entangled states. 

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