RSS Quantum Physics / Mechanics

  • Which physical mechanism is responsible for magnetic properties of cuprates upon doping? November 16, 2018
    An international team of researchers has identified and proved that adding impurities with a lower concentration of electrons stabilizes the antiferromagnetic state of cuprates, high-temperature superconducting compounds based on copper. The research team, led by a senior fellow at Ural Federal University, Evgeny Stepanov, has published the results of the study in npj Quantum Materials.
  • Quantum artificial life created on the cloud November 16, 2018
    A project by the UPV/EHU-University of the Basque Country has for the first time implemented a model of quantum artificial life on a quantum computer.
  • Quantum science turns social November 15, 2018
    Researchers in a lab at Aarhus University have developed a versatile remote gaming interface that allowed external experts as well as hundreds of citizen scientists all over the world to optimize a quantum gas experiment through multiplayer collaboration and in real time. The efforts of both teams dramatically improved upon the previous best solutions established […]
  • A magnetic method to control the transport of chiral Majorana fermions November 13, 2018
    The Majorana fermion, a particle that is its own antiparticle, was originally introduced as a putative elementary particle by Ettore Majorana in 1937, and the chiral Majorana fermion was experimentally observed in topological superconductors in 2017. Since the Majorana fermion is a charge-neutral particle, the direct effect on Majorana fermions by electromagnetic methods should fail. […]
  • A two-atom quantum duet November 9, 2018
    Researchers at the Center for Quantum Nanoscience (QNS) within the Institute for Basic Science (IBS) achieved a major breakthrough in shielding the quantum properties of single atoms on a surface. The scientists used the magnetism of single atoms, known as spin, as a basic building block for quantum information processing. The researchers could show that […]
  • Quantum 'compass' could allow navigation without relying on satellites November 9, 2018
    The UK's first quantum accelerometer for navigation has been demonstrated by a team from Imperial College London and M Squared.
  • Sending spin waves into an insulating 2-D magnet November 9, 2018
    Quantum Hall ferromagnets are among the purest magnets in the world—and one of the most difficult to study. These 2-D magnets can only be made in temperatures less than a degree above absolute zero and in high magnetic fields, about the scale of an MRI.
  • Sandwich structure of nanocrystals as quantum light source November 8, 2018
    Excited photo-emitters can cooperate and radiate simultaneously, a phenomenon called superfluorescence. Researchers from Empa and ETH Zurich, together with colleagues from IBM Research Zurich, have recently been able to create this effect with long-range ordered nanocrystal superlattices. This discovery could enable future developments in LED lighting, quantum sensing, quantum communication and future quantum computing. The […]
  • Quantum systems: Same, but different November 8, 2018
    Remarkable rules have been detected in the apparent chaos of disequilibrium processes. Different systems behave identically in many ways, if they belong to the same "universality class." This means that experiments can be carried out with quantum systems that are easy to handle in order to obtain precise information about systems that cannot be directly […]
  • Experiments with optical tweezers race to test the laws of quantum mechanics November 7, 2018
    One might think that the optical tweezer – a focused laser beam that can trap small particles – is old hat by now. After all, the tweezer was invented by Arthur Ashkin in 1970. And he received the Nobel Prize for it this year—presumably after its main implications had been realized during the last half-century.