Heralded amplification of photonic qubits
Year: 2016
Authors: Bruno N., Pini V., Martin A., Verma V.B., Nam S.W., Mirin R., Lita A., Marsili F., Korzh B., Bussières F., Sangouard N., Zbinden H., Gisin N., Thew R.
Autors Affiliation: Univ Geneva, Grp Appl Phys, CH-1211 Geneva 4, Switzerland; NIST, Boulder, CO 80305 USA; CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA; Univ Basel, Dept Phys, CH-4056 Basel, Switzerland.
Abstract: We demonstrate postselection free heralded qubit amplification for Time-Bin qubits and single photon states in an all-fibre, telecom-wavelength, scheme that highlights the simplicity, stability and potential for fully integrated photonic solutions. Exploiting high-efficiency superconducting detectors, the gain, fidelity and the performance of the amplifier are studied as a function of loss. We also demonstrate the first heralded single photon amplifier with independent sources. This provides a significant advance towards demonstrating device-independent quantum key distribution as well as fundamental tests of quantum mechanics over extended distances.
Journal/Review: OPTICS EXPRESS
Volume: 24 (1) Pages from: 125 to: 133
More Information: The authors would like to thank Alexey Tiranov for discussions. This work was supported by the Swiss NCCR QSIT, the EU projects SIQS and DIQIP and the DARPA Quiness program and the SNSF (Grant No. PP00P2 150579). Part of the research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.KeyWords: Noiseless Linear Amplification; Quantum Communication; State; Cryptography; EntanglementDOI: 10.1364/OE.24.000125Citations: 21data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-20References taken from IsiWeb of Knowledge: (subscribers only)