Tomography by Noise

Harder, G.; Mogilevtsev, D.; Korolkova, N.; Silberhorn, Ch

doi:10.1103/PhysRevLett.113.070403

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Tomography by Noise

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Silberhorn, Ch
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Harder, G., Mogilevtsev, D., Korolkova, N., & Silberhorn, C. (2014). Tomography by Noise. PHYSICAL REVIEW LETTERS, 113(7): 070403. doi:10.1103/PhysRevLett.113.070403.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-65C3-3

Abstract

We present an efficient and robust method for the reconstruction of photon number distributions by using solely thermal noise as a probe. The method uses a minimal number of precalibrated quantum devices; only one on-off single-photon detector is sufficient. The feasibility of the method is demonstrated by the experimental inference of single-photon, thermal. and two-photon states. The method is stable to experimental imperfections and provides a direct, user-friendly quantum diagnostics tool.