Quantum interferences reconstruction with low homodyne detection efficiency
Quantum Physics
2016-05-17 v1 Optics
Abstract
Standard quantum state reconstruction techniques indicate that a detection efficiency of is an absolute threshold below which quantum interferences cannot be measured. However, alternative statistical techniques suggest that this threshold can be overcome at the price of increasing the statistics used for the reconstruction. In the following we present numerical experiments proving that quantum interferences can be measured even with a detection efficiency smaller than . At the same time we provide a guideline for handling the tomographic reconstruction of quantum states based on homodyne data collected by low efficiency detectors.
Cite
@article{arxiv.1508.07799,
title = {Quantum interferences reconstruction with low homodyne detection efficiency},
author = {M. Esposito and F. Randi and K. Titimbo and K. Zimmermann and G. Kourousias and A. Curri and R. Floreanini and F. Parmigiani and D. Fausti and F. Benatti},
journal= {arXiv preprint arXiv:1508.07799},
year = {2016}
}