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Crystals, Optoelectronic, Light, Perovskite, Nanocrystal, colloidal nanocrystals, emitters, Zhili Yang, Matthew Pelton, Maryna I. Bodnarchuk, Maksym V. Kovalenko, Edo Waks, University Of Maryland, ETH Zurich, Applied Physics Letters

Quantum Emitting Answer Might Lie in the Solution


Lead trihalide perovskite nanocrystals are promising candidates as light sources. Coupling quantum emitters with nanophotonic cavities can significantly boost efficiency, but this approach has not been explored with these nanocrystals. Now, researchers have demonstrated a simple approach for coupling solution-synthesized cesium lead tribromide perovskite nanocrystals to silicon nitride photonic cavities. The resulting room temperature light emission is enhanced by an order of magnitude above what perovskites can emit alone. They report their results this week in Applied Physics Letters.



Chemistry, Energy, Quantum Dots

Quantum Dots Amplify Light with Electrical Pumping


In a breakthrough development, Los Alamos scientists have shown that they can successfully amplify light using electrically excited films of the chemically synthesized semiconductor nanocrystals known as quantum dots.



organic lasers, perovskites, Quantum wells

A Curious Quirk Brings Organic Diode Lasers One Step Closer


A team of researchers from Penn State and Princeton University have taken a big step toward creating a diode laser from a hybrid organic-inorganic material that can be deposited from solution on a laboratory benchtop.



Material Science, material sciences, Materials Science, Materials Science & Engineering, materials science engineering, materials sciences, Physical Review Letters , University Of Chicago, Argonne National Laboratory, Argonne Nat'l Laboratory, ANL, quantum materials, Diamond, diamond defects, Quantum Computer, Quantum Computers, Quantum Computing, Qubits, Q

Simple is Beautiful in Quantum Computing


Defect spins in diamond were controlled with a simpler, geometric method, leading to faster computing.



Magnetism, nano

Molecular Magnetism Packs Power with “Messenger Electron”


A UW–Madison lab has made a molecule that gains magnetic strength through an unusual way of controlling those spins, which could lead to a breakthrough in quantam computing.





Law and Public Policy


Rural Health, Healthcare, Robert Wood Johnson Foundation, National 4-H Council, Appalachia, Health Disparities, Racial Disparities, Prevention, Health Policy

Closing the Rural Health Gap: Media Update from RWJF and Partners on Rural Health Disparities


Rural counties continue to rank lowest among counties across the U.S., in terms of health outcomes. A group of national organizations including the Robert Wood Johnson Foundation and the National 4-H Council are leading the way to close the rural health gap.



University Of Chicago, Quantum, quantum behavior, quantum technology, Bose Einstein Condensate, Chemistry

Scientists See Fireworks From Atoms at Ultra-Low Temperatures


Scientists aren’t normally treated to fireworks when they discover something about the universe. But a team of University of Chicago researchers found a show waiting for them at the atomic level—along with a new form of quantum behavior that may someday be useful in quantum technology applications.



Basic Energy Sciences, Basic Energy Research, Material Science, Materials Science, Materials Science & Engineering, materials science engineering, material sciences, CINT, University of Central Florida, Los Alamos National Laboratory, Sandia National Laboratories, Sandia National Laboratory, LANL, Center for Integrated Nanotechnologies, Superconducting,

Spin-Polarized Surface States in Superconductors


Novel spin-polarized surface states may guide the search for materials that host Majorana fermions, unusual particles that act as their own antimatter, and could revolutionize quantum computers.



Quantum Dots, photonic crystal membrane, light waves, Vibrational, vibrational resonances, Acoustic, Patterns, Samuel G. Carter, Allan S. Bracker, Michael K. Yakes, Maxim Zalalutdinov, Mijin Kim, Chul S. Kim, Cyprian Czarnocki, Michael Scheibner, Dan Gammon, Naval Research Laboratory, University of California, Merced, Applied Physics Letters

Quantum Dots Visualize Tiny Vibrational Resonances


When laser light is used to drive the motion of a thin, rigid membrane, the membrane vibrates in resonance with the light. The resulting patterns can be visualized through an array of quantum dots, where these tiny structures emit light at a frequency that responds to movement. The advance is reported this week in a cover article of Applied Physics Letters.



Neutrons, quantum spin liquid, Qubit, Quantum Computer, Materials, quantum condensed matter

Neutrons Reveal Suppression of Magnetic Order in Pursuit of a Quantum Spin Liquid


Paige Kelley, a postdoctoral researcher with a joint appointment at the University of Tennessee and the Department of Energy’s Oak Ridge National Laboratory, is using neutrons to study specific crystal properties that could lead to the realization of a quantum spin liquid, a novel state of matter that may form the basis of future quantum computing technologies.

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