Quantum state reconstruction of the single-photon Fock state
Physical Review Letters 87:5 (2001)
Abstract:
The phase-averaged Wigner function and the density matrix diagonal elements of an optical single-photon Fock state |1> were reconstructed using the method of phase-randomized pulsed optical homodyne tomography. A total measurement efficiency of 55.3 ± 1.3% was obtained. The measurement technique and error analysis were checked by performing a simultaneous measurement on the vacuum state.Optical mode characterization of single photons prepared via conditional measurements on a biphoton state
(2001)
Quantum state reconstruction of the single-photon Fock state.
Physical review letters 87:5 (2001) 050402
Abstract:
We have reconstructed the quantum state of optical pulses containing single photons using the method of phase-randomized pulsed optical homodyne tomography. The single-photon Fock state 1> was prepared using conditional measurements on photon pairs born in the process of parametric down-conversion. A probability distribution of the phase-averaged electric field amplitudes with a strongly non-Gaussian shape is obtained with the total detection efficiency of (55+/-1)%. The angle-averaged Wigner function reconstructed from this distribution shows a strong dip reaching classically impossible negative values around the origin of the phase space.High-resolution Doppler-free molecular spectroscopy with a continuous-wave optical parametric oscillator
(2001)
An ultra-sensitive pulsed balanced homodyne detector: Application to time-domain quantum measurements
(2001)