New state of quantum matter could power future space tech
A UC Irvine team uncovered a never-before-seen quantum phase formed when electrons and holes pair up and spin in unison, creating a glowing, liquid-like state of matter. By blasting a custom-made material with enormous magnetic fields, the researchers triggered this exotic transformation—one that could enable radiation-proof, self-charging computers ideal for deep-space travel.
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/
Physiker bringen „dunkle Excitons“ zum Leuchten
Verborgene Zustände sichtbar gemacht: Forschende haben erstmals „dunkle Excitons“ zum Leuchten gebracht. Diese Quasiteilchen aus gekoppelten Elektronen
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
Nonlinear and Negative Effective Diffusivity of Interlayer Excitons in Moir\'e-Free Heterobilayers
Interlayer excitons in van der Waals heterostructures diffuse rapidly, with diffusion coefficients about 1000 times larger than previously seen, in the absence of moir\'e- and disorder-induced localization.
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.
Scientists discover 'flipping' layers in heterostructures cause changes in their properties
Transition metal dichalcogenide (TMD) semiconductors are special materials that have long fascinated researchers with their unique properties. For one, they are flat, one-atom-thick two-dimensional (2D) materials similar to that of graphene. They are compounds that contain different combinations of the transition metal group (e.g., molybdenum, tungsten) and chalcogen elements (e.g., sulfur, selenium, tellurium).
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
Scientists find link between photosynthesis and 'fifth state of matter'
Inside a lab, scientists marvel at a strange state that forms when they cool down atoms to nearly absolute zero. Outside their window, trees gather sunlight and turn them into new leaves. The two seem unrelated—but a new study from the University of Chicago suggests that these processes aren't so different as they might appear on the surface.
Scientists find link between photosynthesis and 'fifth state of matter'
Inside a lab, scientists marvel at a strange state that forms when they cool down atoms to nearly absolute zero. Outside their window, trees gather sunlight and turn them into new leaves. The two seem unrelated—but a new study from the University of Chicago suggests that these processes aren't so different as they might appear on the surface.
Scientists Create a Longer-Lasting Exciton that May Open New Possibilities in Quantum Information Science
Scientists Create a Longer-Lasting Exciton that May Open New Possibilities in Quantum Information Science
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
A new milestone for light-driven electronics
An international team of scientists collaborating within the Würzburg-Dresden Cluster of Excellence ct.qmat has achieved a breakthrough in quantum research—the first detection of excitons (electrically neutral quasiparticles) in a topological insulator.
Tales from the Fight Against Climate Change: Low Energy Computing (#webcomic). In their continuing effort to help people struggle against
#ClimateChange, *CATALYST* sends a team to see some exciting research happening at
#UniversityofMichigan .
#excitons #photonics #optics #engineering #climatesolutions #solutions #stem #stemeducation #scicomm #physics #computing #bigdata
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