Helge Gehring
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View article: Reinforcement Learning Control of Quantum Error Correction
Reinforcement Learning Control of Quantum Error Correction Open
The promise of fault-tolerant quantum computing is challenged by environmental drift that relentlessly degrades the quality of quantum operations. The contemporary solution, halting the entire quantum computation for recalibration, is unsu…
View article: Reproducible Human Neural Circuits Printed with Single-Cell Precision Reveal the Functional Roles of Ephaptic Coupling
Reproducible Human Neural Circuits Printed with Single-Cell Precision Reveal the Functional Roles of Ephaptic Coupling Open
Although in vitro neuronal models are accessible and versatile systems for functional electrophysiological studies, the spontaneous and random formation of neural circuits often compromises the structural control and reproducibility. Here,…
View article: Ultrabroadband plug-and-play photonic tensor core packaging with sub-dB loss
Ultrabroadband plug-and-play photonic tensor core packaging with sub-dB loss Open
Photonic integrated circuits (PICs) enable high-bandwidth neuromorphic processors and low-decoherence quantum computing on chip-scale platforms, but robust, scalable optical packaging remains a major challenge. Efficient fiber-to-chip coup…
View article: Ultra-Broadband plug-and-play photonic circuit packaging with sub-dB loss
Ultra-Broadband plug-and-play photonic circuit packaging with sub-dB loss Open
Photonic Integrated Circuits (PICs) offer transformative potential for computing systems, enabling high-bandwidth neuromorphic processors and facilitating low decoherence quantum computing on a chip scale platform. However, the development…
View article: Empirical validation of ephaptic coupling in printed human neural circuits
Empirical validation of ephaptic coupling in printed human neural circuits Open
Ephaptic coupling is a phenomenon describing the influence of endogenous electric fields on neuronal activity 1,2 . Although ephaptic coupling is deemed to contribute to computations in the brain 1,3,4 , the olfactory system 5 , the retina…
View article: All-optical spin access via a cavity-broadened optical transition in on-chip hybrid quantum photonics
All-optical spin access via a cavity-broadened optical transition in on-chip hybrid quantum photonics Open
Hybrid quantum photonic systems connect classical photonics to the quantum world and promise to deliver efficient light-matter quantum interfaces while leveraging the advantages of both, the classical and the quantum, subsystems. However, …
View article: Controlling All Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics
Controlling All Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics Open
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View article: Controlling all Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics
Controlling all Degrees of Freedom of the Optical Coupling in Hybrid Quantum Photonics Open
Nanophotonic quantum devices can significantly boost light-matter interaction which is important for applications such as quantum networks. Reaching a high interaction strength between an optical transition of a spin system and a single mo…
View article: All-Optical Spin Initialization via a Cavity Broadened Optical Transition in On-Chip Hybrid Quantum Photonics
All-Optical Spin Initialization via a Cavity Broadened Optical Transition in On-Chip Hybrid Quantum Photonics Open
Hybrid quantum photonic systems connect classical photonics to the quantum world and promise to deliver efficient light-matter quantum interfaces while leveraging the advantages of both, the classical and the quantum, subsystems. However, …
View article: An electroluminescent and tunable cavity-enhanced carbon-nanotube-emitter in the telecom band
An electroluminescent and tunable cavity-enhanced carbon-nanotube-emitter in the telecom band Open
View article: Ultrafast quantum key distribution using fully parallelized quantum channels
Ultrafast quantum key distribution using fully parallelized quantum channels Open
The field of quantum information processing offers secure communication protected by the laws of quantum mechanics and is on the verge of finding wider application for the information transfer of sensitive data. To improve cost-efficiency,…
View article: Fully integrated four-channel wavelength-division multiplexed QKD receiver
Fully integrated four-channel wavelength-division multiplexed QKD receiver Open
Quantum key distribution (QKD) enables secure communication even in the presence of advanced quantum computers. However, scaling up discrete-variable QKD to high key rates remains a challenge due to the lossy nature of quantum communicatio…
View article: Scaling waveguide-integrated superconducting nanowire single-photon detector solutions to large numbers of independent optical channels
Scaling waveguide-integrated superconducting nanowire single-photon detector solutions to large numbers of independent optical channels Open
Superconducting nanowire single-photon detectors are an enabling technology for modern quantum information science and are gaining attractiveness for the most demanding photon counting tasks in other fields. Embedding such detectors in pho…
View article: Ultrafast quantum key distribution using fully parallelized quantum channels
Ultrafast quantum key distribution using fully parallelized quantum channels Open
The field of quantum information processing offers secure communication protected by the laws of quantum mechanics and is on the verge of finding wider application for information transfer of sensitive data. To overcome the obstacle of ina…
View article: Broadband photonic tensor core with integrated ultra-low crosstalk wavelength multiplexers
Broadband photonic tensor core with integrated ultra-low crosstalk wavelength multiplexers Open
The integration of artificial intelligence (AI) systems in the daily life greatly increases the amount of data generated and processed. In addition to the large computational power required, the hardware needs to be compact and energy effi…
View article: Single-Photon Emission from Individual Nanophotonic-Integrated Colloidal Quantum Dots
Single-Photon Emission from Individual Nanophotonic-Integrated Colloidal Quantum Dots Open
Solution processible colloidal quantum dots hold great promise for realizing single-photon sources embedded into scalable quantum technology platforms. However, the high-yield integration of large numbers of individually addressable colloi…
View article: Electrically-Driven Light Emitter in Tailor-Made Photonic Crystal Cavity
Electrically-Driven Light Emitter in Tailor-Made Photonic Crystal Cavity Open
We for the first-time developed telecom hybrid graphene photonic crystal cavity device with an integrated carbon nanotube ensuring high enhancement of its electroluminescent signal and demonstrating the supervision of its intensity.
View article: Broadband waveguide-integrated superconducting single-photon detectors with high system detection efficiency
Broadband waveguide-integrated superconducting single-photon detectors with high system detection efficiency Open
Fast and efficient detection of single photons with high timing accuracy is a crucial requirement in most quantum optics experiments and enables novel sensing and imaging solutions. Superconducting nanowire single-photon detectors (SNSPD) …
View article: Detector-integrated on-chip QKD receiver for GHz clock rates
Detector-integrated on-chip QKD receiver for GHz clock rates Open
Quantum key distribution (QKD) can greatly benefit from photonic integration, which enables implementing low-loss, alignment-free, and scalable photonic circuitry. At the same time, superconducting nanowire single-photon detectors (SNSPD) …
View article: Publisher Correction: Parallel convolutional processing using an integrated photonic tensor core
Publisher Correction: Parallel convolutional processing using an integrated photonic tensor core Open
View article: Parallel convolutional processing using an integrated photonic tensor core
Parallel convolutional processing using an integrated photonic tensor core Open
View article: Waveguide‐Integrated Broadband Spectrometer Based on Tailored Disorder
Waveguide‐Integrated Broadband Spectrometer Based on Tailored Disorder Open
Compact, on‐chip spectrometers exploiting tailored disorder for broadband light scattering enable high‐resolution signal analysis while maintaining a small device footprint. Due to multiple scattering events of light in the disordered medi…
View article: Python based open source design framework for integrated nanophotonic and superconducting circuitry with 2D-3D-hybrid integration
Python based open source design framework for integrated nanophotonic and superconducting circuitry with 2D-3D-hybrid integration Open
The efficient investigation of integrated photonic and superconducting circuitry relies on the flexible design of masks for the lithography steps. While commercial software packages for high-end design are commonly employed, for scientific…
View article: Low-loss fiber-to-chip couplers with ultrawide optical bandwidth
Low-loss fiber-to-chip couplers with ultrawide optical bandwidth Open
Providing efficient access from optical fibers to on-chip photonic systems is a key challenge for integrated optics. In general, current solutions allow either narrowband out-of-plane-coupling to a large number of devices or broadband edge…
View article: Quantum dynamics of optical phonons generated by optical excitation of a quantum dot
Quantum dynamics of optical phonons generated by optical excitation of a quantum dot Open