Instant single-photon Fock state tomography.
Heralded single photons are prepared at a rate of approximately 100 kHz via conditional measurements on polarization-nondegenerate biphotons produced in a periodically poled potassium-titanyl phosphate crystal. The single-photon Fock state is characterized using high-frequency pulsed optical homodyne tomography with a fidelity of (57.6+/-0.1)%. The state preparation and detection rates allowed us to perform on-the-fly alignment of the apparatus based on real-time analysis of the quadrature measurement statistics.
Huisman
S R
SR
Institute for Quantum Information Science, University of Calgary, Calgary, Alberta T2N 1N4, Canada.
Jain
Nitin
N
Babichev
S A
SA
Vewinger
Frank
F
Zhang
A N
AN
Youn
S H
SH
Lvovsky
A I
AI