Reconstruction of photon number conditioned states using phase randomized homodyne measurements

• URL: http://arxiv.org/abs/2107.12118v2
• Date: Tue, 27 Jul 2021 14:24:03 GMT
• Title: Reconstruction of photon number conditioned states using phase randomized homodyne measurements
• Authors: H. M. Chrzanowski, S. M. Assad, Julien Bernu, Boris Hage, A. P. Lund, T. C. Ralph, P. K. Lam and T. Symul
• Abstract summary: We experimentally demonstrate the reconstruction of a photon number conditioned state without using a photon number discriminating detector. The reconstructed Wigner functions of these states show regions of pronounced negativity, signifying the non-classical nature of the reconstructed states.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We experimentally demonstrate the reconstruction of a photon number conditioned state without using a photon number discriminating detector. By using only phase randomized homodyne measurements, we reconstruct up to the three photon subtracted squeezed vacuum state. The reconstructed Wigner functions of these states show regions of pronounced negativity, signifying the non-classical nature of the reconstructed states. The techniques presented allow for complete characterization of the role of a conditional measurement on an ensemble of states, and might prove useful in systems where photon counting still proves technically challenging.

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