Detection-device-independent verification of nonclassical light

Year: 2019

Authors: Bohmann M., Qi L., Vogel W., Chekhova M.

Autors Affiliation: INO CNR, Largo Enrico Fermi 2, I-50125 Florence, Italy; LENS, Largo Enrico Fermi 2, I-50125 Florence, Italy; Max Planck Inst Sci Light, Erlangen, Germany; Univ Erlangen Nurnberg, Staudtstr 7-B2, D-91058 Erlangen, Germany; Univ Rostock, Inst Phys, Arbeitsgrp Theoret Quantenopt, D-18051 Rostock, Germany.

Abstract: The efficient certification of nonclassical effects of light forms the basis for applications in optical quantum technologies. We derive general correlation conditions for the verification of nonclassical light based on multiplexed detection. The obtained nonclassicality criteria are valid for imperfectly balanced multiplexing scenarios with on-off detectors and do not require any knowledge about the detector system. In this sense, they are fully independent of the detector system. In our experiment, we study light emitted by clusters of single-photon emitters, whose photon number may exceed the number of detection channels. Even under such conditions, our criteria certify nonclassicality with high statistical significance.

Journal/Review: PHYSICAL REVIEW RESEARCH

Volume: 1 (3)      Pages from: 33178-1  to: 33178-10

More Information: This work has been supported by Deutsche Forschungsgemeinschaft through Grant No. VO 501/22-2. M.B. acknowledges financial support by the Leopoldina Fellowship Programme of the German National Academy of Science (LPDS 2019-01) and thanks Valentin Gebhart and Elizabeth Agudelo for helpful comments.
KeyWords: Quantum; States; Coherent
DOI: 10.1103/PhysRevResearch.1.033178

Citations: 6
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-17
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here