Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 33: Quantum Networks: Concepts & Applications

FM 33.6: Talk

Dienstag, 24. September 2019, 15:30–15:45, 1015

Single- and multiphoton interference using time-multiplexed network — •Syamsundar De1, Thomas Nitsche1, Evan Meyer-Scott1, Johannes Tiedau1, Aurél Gábris2,3, Sonja Barkhofen1, Jan Sperling1, Benjamin Brecht1, Igor Jex2, and Christine Silberhorn11Integrated Quantum Optics, University of Paderborn, Warburger Strasse 100, 33098 Paderborn, Germany — 2Department of Physics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brěhová 7, 115 19 Praha 1 - Staré Město, Czech Republic — 3Department of Quantum Optics and Quantum Information, Wigner Research Centre for Physics, Budapest, Konkoly-Thege M. U. 29-33, H-1121 Budapest, Hungary

Time-multiplexed networks constitute a versatile platform to extract benefits from the optical coherence linked to their high flexibility and reconfigurability as well as excellent efficiency and stability. Such time-multiplexing schemes show great potentials for fundamental studies as well as applications in quantum technology. Examples include quantum-walk, boson sampling, generation of large-scale cluster states, measurement-based quantum computing, to name only a few. In this study, we exploit our well-established fiber optical-loop design for time-multiplexing to synthesize the modal structure of the photon wave-packets and to test the quantum-classical nature of the involved optical states. We utilize single- and multiphoton quantum interference in the time-multiplexed network to recover both the modal structure and the quantum-classical nature of pulsed light.

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