RSS Quantum Physics / Mechanics

  • The best topological conductor yet: Spiraling crystal is the key to exotic discovery March 20, 2019
    The realization of so-called topological materials—which exhibit exotic, defect-resistant properties and are expected to have applications in electronics, optics, quantum computing, and other fields—has opened up a new realm in materials discovery.
  • Computer program developed to find 'leakage' in quantum computers March 19, 2019
    A new computer program that spots when information in a quantum computer is escaping to unwanted states will give users of this promising technology the ability to check its reliability without any technical knowledge for the first time.
  • We did a breakthrough 'speed test' in quantum tunnelling, and here's why that's exciting March 19, 2019
    When you deal with things at the quantum scale, where things are very small, the world is quite fuzzy and bizarre in comparison to our everyday experiences.
  • Turning an organic molecule into a coherent two-level quantum system March 18, 2019
    Researchers at Max Planck Institute for the Science of Light and Friedrich Alexander University in Erlangen, Germany have recently demonstrated that a molecule can be turned into a coherent two-level quantum system. In their study, published in Nature Physics, they placed an organic molecule inside an optical microcavity and found that it behaved as a […]
  • Researchers measure near-perfect performance in low-cost semiconductors March 15, 2019
    Tiny, easy-to-produce particles, called quantum dots, may soon take the place of more expensive single crystal semiconductors in advanced electronics found in solar panels, camera sensors and medical imaging tools. Although quantum dots have begun to break into the consumer market—in the form of quantum dot TVs—they have been hampered by long-standing uncertainties about their […]
  • Speeding up artificial intelligence March 15, 2019
    A group at Politecnico di Milano has developed an electronic circuit able to solve a system of linear equations in a single operation in the timescale of a few tens of nanoseconds. The performance of this new circuit is superior not only to classical digital computers, but also to quantum computers. It will be soon […]
  • Long-distance quantum information exchange—success at the nanoscale March 15, 2019
    At the Niels Bohr Institute, University of Copenhagen, researchers have realized the swap of electron spins between distant quantum dots. The discovery brings us a step closer to future applications of quantum information, as the tiny dots have to leave enough room on the microchip for delicate control electrodes. The distance between the dots has […]
  • Quantum sensing method measures minuscule magnetic fields March 15, 2019
    A new way of measuring atomic-scale magnetic fields with great precision, not only up and down but sideways as well, has been developed by researchers at MIT. The new tool could be useful in applications as diverse as mapping the electrical impulses inside a firing neuron, characterizing new magnetic materials, and probing exotic quantum physical […]
  • Exploring the behavior of a gas as it transitions between quantum and classical states March 15, 2019
    A team of researchers from the MIT-Harvard Center for Ultracold Atoms has developed a way to study and measure gases as they transition between quantum and classical states due to changes in temperature. In their paper published in the journal Physical Review Letters, the group describes experiments they carried out with clouds of lithium-6 atoms […]
  • Researchers put machine learning on path to quantum advantage March 14, 2019
    There are high hopes that quantum computing's tremendous processing power will someday unleash exponential advances in artificial intelligence. AI systems thrive when the machine learning algorithms used to train them are given massive amounts of data to ingest, classify and analyze. The more precisely that data can be classified according to specific characteristics, or features, […]