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

Abstract

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.

5 pages, 4 pictures, largely revised version

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• Squeezing-enhanced phase-shift-keyed binary communication in noisy channels
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• Homodyne tomography with homodyne-like detection
• Enhanced phase estimation in parity detection based Mach-Zehnder interferometer using non-Gaussian two-mode squeezed thermal input state
• Detection of squeezing by on-chip glass-integrated homodyne analyzer
• Squeezing phase diffusion
• Homodyning the $g^{(2)}(0)$ of Gaussian states
• Experimental pre-assessing entanglement in Gaussian states mixing
• Non-Gaussian two mode squeezed thermal states in continuous variable quantum teleportation