#excitons — Public Fediverse posts

Exciton-Magnetic Interactions Pave Way for Quantum Technologies

📰 Original title: Quantum breakthrough links light and magnetism in atomically thin materials

🤖 IA: It's not clickbait ✅
👥 Users: It's not clickbait ✅

View full AI summary https://en.killbait.com/exciton-magnetic-interactions-pave-way-for-quantum-technologies.html?utm_source=mastodon_world&utm_medium=social&utm_campaign=killbait.mastodon_world

#science #quantummaterials #excitons #magnetism

Physiker bringen „dunkle Excitons“ zum Leuchten. Resonator aus Nano-Goldblöckchen macht exotische Quasiteilchen sichtbar. #Physik #Exzitonen #Excitons #Teilchen #Gold
https://www.scinexx.de/news/physik/physiker-bringen-dunkle-excitons-zum-leuchten/

Excitons are elementary excitations in solids. A research team at the University of Innsbruck has now devised a method to specifically manipulate dark excitons in semiconductor quantum dots. They have succeeded in controlling these optically inactive quasiparticles and harnessing their unique properties for the storage and processing of quantum states.

👉 https://www.uibk.ac.at/en/newsroom/2025/keeping-the-photon-in-the-dark/

#quantumphysics #quantumdots #photonics #physics #excitons

`Using transient #microscopy we observe propagation properties of interlayer #excitons that are independent from trapping at moiré- or disorder-induced local potentials. Confirmed by characteristic temperature dependence for free #particles, linear #diffusion coefficients of interlayer excitons at liquid #helium temperature and low excitation densities are almost 1000 times higher than in previous observations`

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.132.016202

https://phys.org/news/2023-10-scientists-flipping-layers-heterostructures-properties.html

By incorporating different materials, it becomes possible to combine the properties of individual layers, producing new #optoelectronic devices with tailor-made properties. This opens the door to exploring fundamental #physics, such as interlayer #excitons, #twistronics, and more.

I found this quite fascinating. It certainly helps to explain how plants are so efficient with the energy they get and how they move it so quickly.

#nature #science #excitons

https://phys.org/news/2023-05-scientists-link-photosynthesis-state.html

In a new study, #scientists have observed long-lived #excitons in a #topological material, opening intriguing new research directions for #optoelectronics and #quantum #computing.
#QuantumScience #Physics #sflorg
https://www.sflorg.com/2023/04/qs04252301.html

A team of scientists from Würzburg and #Dresden has achieved a breakthrough - the first detection of excitons (electrically neutral quasiparticles) in a topological insulator. This discovery paves the way for a new generation of light-driven computer chips and quantum technologies. 🚀

https://phys.org/news/2023-01-milestone-light-driven-electronics.html

#quantumcomputing #topologicalinsulator #excitons
#QC #quantum #quantumtechnology

@razimantv
Raziman also took into account that #excitons interact with each other through exciton-exciton annihilation, which normally decreases light emission at high intensities.

So he generalized the theory of Purcell enhancement to be more precise for a range of excitonic materials like #2DSemiconductors, #perovskites, #OrganicCrystals or #CarbonNanotubes.

#nanophotonics #FluorescenceFriday

#MyPaperInAToot

Scientists use #nanophotonics to improve light emission. The strong electric field near nanostructures can excite molecules and extract light from them more efficiently, creating better light sources. We usually model this by assuming that the emitter stays fixed. But in many practical materials, emitting #excitons move around! We found a recipe for making such devices better by figuring out how to do calculations more correctly (led by @albertogcurto): https://onlinelibrary.wiley.com/doi/10.1002/adom.202200103