Freiburg researchers find new mechanism for classical behavior of many-particle quantum systems.
In research published today in Nature Communications, engineers from Rensselaer Polytechnic Institute demonstrated how, when the TMDC materials they make are stacked in a particular geometry, the interaction that occurs between particles gives researchers more control over the devices' properties. Specifically, the interaction between electrons becomes so strong that they form a new structure known as a correlated insulating state. This is an important step, researchers said, toward developing quantum emitters needed for future quantum simulation and computing.
The structure of a biomolecule can reveal much about its functioning and interaction with the surrounding environment. In a new study by SISSA experimental data were combined with computer simulations of molecular dynamics to examine the conformation of an RNA fragment involved in protein synthesis and its dependence on the salts present in the solution. The research has led to a new method for high-resolution definition of the structures of biomolecules in their physiological environments.
Physicists have long suspected that dielectric materials may significantly disrupt ion-trap quantum computers. Now, researchers led by Tracy Northup have developed a new method to quantify this source of error for the first time. For the future operation of quantum computers with very many quantum bits, such noise sources need to be eliminated already during the design process if possible.
A recent study, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has introduced mechanically closable nanotrenches enabling topology changes of metamaterials, thereby switching optical functionalities in a repeatable manner.
A study led by University of Minnesota researchers uncovered a property of magnetic materials that will allow engineers to develop more efficient spintronic devices in the future, which could lead to faster and more efficient computing and data storage.
By shining laser light on semiconducting moiré superlattices formed by stacking two atomically thin materials -- monolayer tungsten diselenide (WSe2) and monolayer molybdenum diselenide (MoSe2) -- a team led by researchers at the University of California, Riverside, and Academia Sinica in Taiwan found a new class of electronic excited states called "moiré trions." The study opens up new opportunities to develop trion-based quantum optical emitters and offers new approaches to explore moiré physics.
Using an ultrafast transmission electron microscope, researchers from the Technion - Israel Institute of Technology have, for the first time, recorded the propagation of combined sound and light waves in atomically thin materials. The experiments were performed in the Robert and Ruth Magid Electron Beam Quantum Dynamics Laboratory headed by Professor Ido Kaminer, of the Andrew and Erna Viterbi Faculty of Electrical & Computer Engineering and the Solid State Institute.
Russian scientists have found a way to increase photoluminescence in silicon, the notoriously poor emitter and absorber of photons at the heart of all modern electronics. This discovery may pave the way to photonic integrated circuits, boosting their performance.
Inside each proton or neutron there are three quarks bound by gluons. Until now, it has often been assumed that two of them form a 'stable' pair known as a diquark. It seems, however, that it's the end of the road for the diquarks in physics. This is one of the conclusions of the new model of proton-proton or proton-nucleus collisions, which takes into account the interactions of gluons with the sea of virtual quarks and antiquarks.