Editor’s Picks

  1. More Stable Light Comes From Intentionally 'Squashed' Quantum Dots

    Intentionally “squashing” colloidal quantum dots during chemical synthesis creates dots capable of stable, “blink-free” light emission that is fully comparable with the light produced by dots made with more complex processes. The squashed dots emit spectrally narrow light with a highly stable intensity and a non-fluctuating emission energy.

  2. Electronics Of The Future: A New Energy-Efficient Mechanism Using The Rashba Effect

    Scientists at Tokyo Tech proposed new quasi-1D materials for potential spintronic applications, an upcoming technology that exploits the spin of electrons. They performed simulations to demonstrate the spin properties of these materials and explained the mechanisms behind their behavior.

  3. Earth's Magnetic Field Measured Using Artificial Stars At 90 Kilometers Altitude

    The mesosphere, at heights between 85 and 100 kilometers above the Earth's surface, contains a layer of atomic sodium. Astronomers use laser beams to create artificial stars, or laser guide stars (LGS), in this layer for improving the quality of astronomical observations.

  4. Physicists Record ‘Lifetime’ Of Graphene Qubits

    Researchers from MIT and elsewhere have recorded, for the first time, the “temporal coherence” of a graphene qubit — meaning how long it can maintain a special state that allows it to represent two logical states simultaneously.

  5. Hybrid Qubits Solve Key Hurdle To Quantum Computing

    Spin-based quantum computers have the potential to tackle difficult mathematical problems that cannot be solved using ordinary computers, but many problems remain in making these machines scalable.

  6. Ultra-Sensitive Sensor With Gold Nanoparticle Array

    The sensor is made up of a series of gold disk-shaped nanoparticles on a glass slide. The team at Bath discovered that when they shone an infra-red laser at a precise arrangement of the particles, they started to emit unusual amounts of ultra violet (UV) light.

  7. Illuminating Nanoparticle Growth With X-Rays

    Hydrogen fuel cells are a promising technology for producing clean and renewable energy, but the cost and activity of their cathode materials is a major challenge for commercialization. Many fuel cells require expensive platinum-based catalysts—substances that initiate and speed up chemical reactions—to help convert renewable fuels into electrical energy.

  8. Scientists Move Quantum Optic Networks A Step Closer To Reality

    Scientists have moved quantum optic networks a step closer to reality. The ability to precisely control the interactions of light and matter at the nanoscale could help such a network transmit larger amounts of data more quickly and securely than an electrical network.

  9. Metamaterial With Inherently Robust Sound Transport

    Researchers at the Advanced Science Research Center (ASRC) at The Graduate Center of The City University of New York and at the City College of New York (CCNY) have developed a metamaterial that can transport sound in unusually robust ways along its edges and localize it at its corners.

  10. Quantum Scientists Demonstrate World-First 3D Atomic-Scale Quantum Chip Architecture

    UNSW scientists have shown that their pioneering single atom technology can be adapted to building 3D silicon quantum chips – with precise interlayer alignment and highly accurate measurement of spin states.