RTNSep 9, 2025

#UZH:
"
UZH-Detektor sucht nach sehr leichter Dunkler Materie im Universum
"
"Supraleitende Sensoren können einzelne Photonen mit niedriger Energie detektieren. UZH-Forschende haben diese Fähigkeit nun genutzt, um nach sehr leichten Dunkle-Materie-Teilchen zu suchen."

9.9.2025

https://www.news.uzh.ch/de/articles/media/2025/Dunkle-Materie.html

#Astronomie #Astrophysik #DarkMatter #DM #DunkleMaterie #Kosmologie #matter #Nanodraht #QROCODILE #SNSPD #Supraleitung #Universum #Zürich

Sehr leichte Dunkle Materie

IL PhotonicsNov 21, 2024
Recently, two groups published exciting results using free-space optical links for #QuantumCommunication with #SNSPD technology. In one paper, the authors report on a study of the effect of atmospheric turbulence on finite-size decoy-state BB84 quantum key distribution (#QKD). In another collaboration, the team demonstrated a QKD system designed for full daylight operation at 1550 nm. Learn more: https://ilphotonics.com/practical-free-space-qkd-enabled-by-snspds/
Practical Free-Space QKD Enabled Optical Links by SNSPDs | IL Photonics

Recently, two groups published exciting results using free-space optical links for quantum communication with IDQ’s SNSPD technology.

IL Photonics
Show thread65dBnoiseDec 19, 2023

@tom30519
I'd naively think that some dispersion may be tolerable/desirable to compensate for pointing inaccuracies, as long as a single photon (the more, the merrier) can find its way to the receiver. The instrument that does most of the magic is the superconducting nanowire single photon detector (#SNSPD).

Here is a detailed description of the system that I found (tl;dr yet):

PDF: https://dataverse.jpl.nasa.gov/api/access/datafile/74661

Dr. Aimee K. GuntherMar 30, 2023

👀 "Superconducting single-photon detectors get hot"

#Quantum #SNSPD #2DMaterials

https://www.nature.com/articles/s41565-023-01334-1

Superconducting single-photon detectors get hot - Nature Nanotechnology

High-Tc superconducting nanowire detectors can detect single photons of telecom wavelengths at a temperature of 25 K and may enable applications in quantum sensing and quantum information processing.

Nature