RSS Quantum Physics / Mechanics

  • Understanding insulators with conducting edges January 16, 2019
    Insulators that are conducting at their edges hold promise for interesting technological applications. However, until now their characteristics have not been fully understood. Physicists at Goethe University have now modelled what are known as topological insulators with the help of ultracold quantum gases. In the current issue of Physical Review Letters, they demonstrate how the […]
  • New quantum structures in super-chilled helium may mirror early days of universe January 16, 2019
    For the first time, researchers have documented the long-predicted occurrence of 'walls bound by strings' in superfluid helium-3. The existence of such an object, originally foreseen by cosmology theorists, may help explaining how the universe cooled down after the Big Bang. With the newfound ability to recreate these structures in the lab, earth-based scientists finally […]
  • Experiments detect entropy production in mesoscopic quantum systems January 16, 2019
    The production of entropy, which means increasing the degree of disorder in a system, is an inexorable tendency in the macroscopic world owing to the second law of thermodynamics. This makes the processes described by classical physics irreversible and, by extension, imposes a direction on the flow of time. However, the tendency does not necessarily […]
  • A step closer to a data superhighway for future internet January 10, 2019
    An international team of researchers led by ANU is helping to build a safe data superhighway for the highly anticipated quantum internet, which promises a new era of artificial intelligence and ultra-secure communication.
  • Reimagining information processing January 9, 2019
    Because technology is a part of our everyday lives, it may be difficult to imagine what the future of technology will look like, let alone what it has the potential of accomplishing.
  • Quantum scientists demonstrate world-first 3-D atomic-scale quantum chip architecture January 7, 2019
    UNSW researchers at the Centre of Excellence for Quantum Computation and Communication Technology (CQC2T) have shown for the first time that they can build atomic precision qubits in a 3-D device—another major step towards a universal quantum computer.
  • Excitons pave the way to higher-performance electronics January 4, 2019
    After developing a method to control exciton flows at room temperature, EPFL scientists have discovered new properties of these quasiparticles that can lead to more energy-efficient electronic devices.
  • Quantum chemistry on quantum computers January 2, 2019
    Quantum computing and quantum information processing technology have attracted attention in recently emerging fields. Among many important and fundamental issues in science, solving the Schroedinger equation (SE) of atoms and molecules is one of the ultimate goals in chemistry, physics and their related fields. SE is the first principle of non-relativistic quantum mechanics, whose solutions, […]
  • Machine learning and quantum mechanics team up to understand water at the atomic level January 2, 2019
    Why is water densest at around 4 degrees Celsius? Why does ice float? Why does heavy water have a different melting point compared to normal water? Why do snowflakes have a six-fold symmetry? A collaborative study, led by researchers in EPFL and just published in the Proceedings of the National Academy of Sciences, provides physical […]
  • Hybrid qubits solve key hurdle to quantum computing December 28, 2018
    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. Now, an international group of researchers led by the RIKEN Center for Emergent Matter Science have crafted a new architecture for quantum computing. By constructing a hybrid device […]