Regensburg 2025 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 44: Focus Session: Quantum Technologies in Deployed Systems I

HL 44.1: Vortrag

Mittwoch, 19. März 2025, 18:00–18:15, H13

Advancing Quantum Communication with Deterministic Quantum Light Sources from Laboratory- to Field-Experiments — •Mareike Lach, Koray Kaymazlar, Pratim Saha, Martin von Helversen, and Tobias Heindel — Institut für Festkörperphysik, Technische Universität Berlin, 10623 Berlin, Germany

The advances in the field of non-classical light generation using solid-state quantum light sources fostered the exploration of applications in quantum communication and networking. This interdisciplinary field thereby increasingly evolves from laboratory-scale to field-experiments [1]. In this contribution we address the design, set-up and characterization of stand-alone compact modules for field-deployable quantum communication systems. In this context key components of the transmitter- and receiver-stations for quantum key distribution protocols are discussed, including mobile quntum light sources, fast qubit-state encoders, and qubit-state analyzers. Advancing the field-deployment of quantum technologies will foster both the progress in explorativ research projects as well as the transfer to their commercialization.

[1] D.A. Vajner et al., Advanced Quantum Technologies, doi:10.1002/qute.202100116 (2022)

Keywords: QKD