Gerrits, T.
, Lita, A.
, Nam, S.
, Nehra, R.
, Win, A.
, Eaton, M.
, Sridhar, N.
, Shahrokhshahi, R.
and Pfister, O.
(2019),
State-independent quantum tomography of a single-photon state by photon-number-resolving measurements, Optica, [online], https://doi.org/10.1364/OPTICA.6.001356
(Accessed October 25, 2025)
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State-independent quantum tomography of a single-photon state by photon-number-resolving measurements
Published
Author(s)
, , , Rajveer Nehra, Aye Win, Miller Eaton, Niranjan Sridhar, R. Shahrokhshahi, O Pfister
Abstract
A narrowband single-photon state was generated by heralding cavity-enhanced spontaneous parametric downconversion in a PPKTP optical parametric oscillator. The Wigner quasiprobability distribution function was reconstructed, in a state-independent manner, by quantum state tomography using photon-number-resolving measurements with a system efficiency of 58±2%. Negativity of the Wigner function was observed in the raw data without any inference or correction for decoherence.Citation
Optica
Pub Type
Journals
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Keywords
single photon detectors, squeezing, quantum state tomography
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Created October 10, 2019, Updated April 9, 2024