Publications (19)
2022 Roadmap for Materials for Quantum Technologies
Christoph Becher, Weibo Gao, Swastik Kar +15
Quantum technologies are poised to move the foundational principles of quantum physics to the forefront of applications. This roadmap identifies some of the key challenges and prov…
A two-dimensional piezo-optomechanical transducer
Tian Xie, Nelson Ooi, Linus Woodard +7
The paper presents a two‑dimensional piezo‑optomechanical transducer based on engineered optomechanical crystals, demonstrating efficient microwave‑to‑optical conversion with low t…
Current crowding in nanoscale superconductors within the Ginzburg-Landau model
Mattias Jönsson, Robert Vedin, Samuel Gyger +5
The current density in a superconductor with turnarounds or constrictions is non-uniform due to a geometrical current crowding effect. This effect reduces the critical current in t…
Scalable single-photon sources in atomically thin MoS2
Julian Klein, Lukas Sigl, Samuel Gyger +13
Real-world quantum applications, eg. on-chip quantum networks and quantum cryptography, necessitate large scale integrated single-photon sources with nanoscale footprint for modern…
Giant Rydberg excitons in CuO probed by photoluminescence excitation spectroscopy
Marijn A. M. Versteegh, Stephan Steinhauer, Josip Bajo +7
Rydberg excitons are, with their ultrastrong mutual interactions, giant optical nonlinearities, and very high sensitivity to external fields, promising for applications in quantum…
Fractal superconducting nanowires detect infrared single photons with 84% system detection efficiency, 1.02 polarization sensitivity, and 20.8 ps timing resolution
Yun Meng, Kai Zou, Nan Hu +6
The near-unity system detection efficiency (SDE) and excellent timing resolution of superconducting nanowire single-photon detectors (SNSPDs), combined with their other merits, hav…