activity
20242026
collaborators

5 papers

quant-ph2026

Time-bin encoded quantum key distribution over 120 km with a telecom quantum dot source

Jipeng Wang, Joscha Hanel, Zenghui Jiang +11

Quantum key distribution (QKD) with deterministic single photon sources has been demonstrated over intercity fiber and free-space channels. The previous implementations relied main…

quant-ph2025

Asymmetric two-photon response of an incoherently driven quantum emitter

Lennart Jehle, Lena M. Hansen, Patrik I. Sund +7

Quantum emitters promise to emit exactly one photon with high probability when pumped by a laser pulse. However, even in ideal systems, re-excitation during a laser pulse causes th…

quant-ph2025

Efficient fiber coupling of telecom single-photons from circular Bragg gratings

Nam Tran, Pavel Ruchka, Sara Jakovljevic +9

Deterministic sources of quantum light are becoming increasingly relevant in the development of quantum communication, particularly in deployed fiber networks. Therefore, efficient…

quant-ph2025

Initialization of Neutral and Charged Exciton Spin States in a Telecom-Emitting Quantum Dot

Giora Peniakov, Johannes Michl, Mohamed Helal +6

Photonic cluster states are highly entangled states that allow for photonic quantum computing and memory-less quantum repeaters. Their generation has been recently demonstrated usi…

physics.optics2024

Telecom wavelength quantum dots interfaced with silicon-nitride circuits via photonic wire bonding

Ulrich Pfister, Daniel Wendland, Florian Hornung +10

Photonic integrated circuits find ubiquitous use in various technologies, from communication, to computing and sensing, and therefore play a crucial role in the quantum technology…