Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Hübel Hannes"'
Autor:
Zaiser, Emmily, Trenti, Alessandro, Milovančev, Dinka, Vokić, Nemanja, Schrenk, Bernhard, Hübel, Hannes
The generation and detection of squeezed light through spontaneous parametric down-conversion in a nonlinear crystal up to a frequency of 3.5 GHz is presented. We characterize the quantum state with balanced homodyne detection, leveraging a low-noise
Externí odkaz:
http://arxiv.org/abs/2407.07588
We demonstrate QKD and data communication over an out-door free-space link where large-core fiber substitutes active alignment. We further prove E-band QKD as stable and robust under full daylight, despite the loss of spatial filtering.
Externí odkaz:
http://arxiv.org/abs/2405.01236
Autor:
Honz, Florian, Vokić, Nemanja, Hentschel, Michael, Walther, Philip, Hübel, Hannes, Schrenk, Bernhard
We demonstrate a novel transmitter concept for quantum key distribution based on the polarization-encoded BB84 protocol, which is sourced by the incoherent light of a forward-biased Ge-on-Si PIN junction. We investigate two architectures for quantum
Externí odkaz:
http://arxiv.org/abs/2403.13505
Autor:
Honz, Florian, Prawits, Florian, Alia, Obada, Sakr, Hesham, Bradley, Thomas, Zhang, Cong, Slavík, Radan, Poletti, Francesco, Kanellos, George, Nejabati, Reza, Walther, Philip, Simeonidou, Dimitra, Hübel, Hannes, Schrenk, Bernhard
As quantum key distribution has reached the maturity level for practical deployment, questions about the co-integration with existing classical communication systems are of utmost importance. To this end we demonstrate how the co-propagation of class
Externí odkaz:
http://arxiv.org/abs/2403.13503
Autor:
Ramos, Mariana Ferreira, Slater, Marie-Christine, Hentschel, Michael, Achleitner, Martin, Hübel, Hannes, Schrenk, Bernhard
We investigate the co-existence of 852-nm and 1550-nm QKD with carrier-grade 4x25-Gb/s/$\lambda$ LANWDM over a short-reach interconnect. Shortwave QKD yields a higher key rate and is insensitive to Raman noise, as opposed to 1550-nm QKD.
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Externí odkaz:
http://arxiv.org/abs/2311.17591
We investigate a polarization-encoded BB84-QKD transmitter that is simplified from an architectural and technological point-of-view, demonstrating a silicon emitter sourcing a low-complexity polarization modulator for secure-key generation at a raw-k
Externí odkaz:
http://arxiv.org/abs/2311.00017
Autor:
Antesberger, Michael, Richter, Carla M. D., Poletti, Francesco, Slavík, Radan, Petropoulos, Periklis, Hübel, Hannes, Trenti, Alessandro, Walther, Philip, Rozema, Lee A.
Publikováno v:
Optica Quantum 2, 173-180 (2024)
State of the art classical and quantum communication rely on standard optical fibers with solid cores to transmit light over long distances. However, recent advances have led to the emergence of antiresonant hollow-core optical fibers (AR-HCFs), whic
Externí odkaz:
http://arxiv.org/abs/2308.01337
We investigate the behavior of a Ge-on-Si light source and demonstrate its feasibility for polarization-encoded discrete-variable quantum key distribution following the BB84 protocol, enabling a potential "all-silicon" QKD scheme which can operate we
Externí odkaz:
http://arxiv.org/abs/2311.10714
We demonstrate a simplified out-door FSO link with modal split for down-/uplink and confirm its long-term stability without active beam tracking. We further prove the duality of modal and directional split through penalty-free full-duplex transmissio
Externí odkaz:
http://arxiv.org/abs/2309.17358
We demonstrate a polarization-encoded BB84 transmitter sourced by a SiGe light source and show that such a potentially "all-silicon" QKD scheme can operate well below the QBER threshold at which secret keys can be established.
Externí odkaz:
http://arxiv.org/abs/2306.17255