Kagome metal, a new discovery made through research by Assistant Prof. Joseph Checkelsky and graduate student Linda Ye, allows for the transfer of electrical currents “across atomic layers in the crystal” without any energy loss. Aristos Georgiou for Newsweek writes that such material may enable quantum computers "to solve certain problems that even the most powerful classical computers struggle to calculate.”
BBC News reports on the creation of Kagome metal, an “electrically conducting crystal, made from layers of iron and tin atoms,” that could be used in more powerful quantum computers. The shape of the conductor, developed by Assistant Professor Joseph Checkelsky and graduate student Linda Ye, mimics a popular pattern in Japanese basket-weaving.
MIT researchers have discovered that arranging two stacked layers of graphene at a slight angle makes the material a superconductor, writes Elizabeth Gibney for Nature. After discovering that the graphene had the ability to conduct electrons, researchers applied “a small electric field to feed just a few extra charge carriers into the system, and it became a superconductor.”
Research published in Science demonstrates the ability of photons to bind together in a way previously thought impossible – creating a new form of light. “The photon dance happens in a lab at MIT where the physicists run table-top experiments with lasers,” writes Marissa Fessenden for Smithsonian. “Photons bound together in this way can carry information – a quality that is useful for quantum computing.”
Writing for Newsweek, Katherine Hignett reports that for the first time, scientists have observed groups of three photons interacting and effectively producing a new form of light. “Light,” Prof. Vladan Vuletic, who led the research, tells Hignett, “is already used to transmit data very quickly over long distances via fiber optic cables. Being able to manipulate these photons could enable the distribution of data in much more powerful ways.”
Research by Physics PhD candidate Sergio Cantu has led to the discovery of a new form of light, which happens when photos stick together, as opposed to passing through one another. “’We send the light into the medium, it gets effectively dressed up as if it were atoms, and then when it turns back into photons they remember interactions that happened in the medium,” Cantu explains to Leah Crane at New Scientist.
MIT physicists have created a new form of light that allows up to three photons to bind together, writes Daniel Oberhaus for Motherboard. While the research is experimental, Oberhaus writes that the trio of photons “are much more strongly bound together and are, as a result, better carriers of information” than other photonic qubits.
Frederick Daso of Forbes highlights MIT alumnus Ryan Robinson, whose startup aims to share unused computational capacity with others who need to perform intensive calculations. This technology will one day “help companies afford cheap, distributed computational power via quantum computing, and allow individuals to make money by loaning out their spare processing power and mining for cryptocurrency,” writes Daso.
Newsweek reporter Katherine Hignett writes that MIT and Harvard researchers have successfully manipulated individual atoms using lasers in one of the largest quantum computer simulations. Hignett writes that, “their technology could help make superfast quantum computers a working reality.”
Boston Globe reporter Alyssa Meyers writes that researchers from MIT and Harvard have demonstrated one of the largest quantum simulators that can trap individual atoms in laser beams. Prof. Vladan Vuletić explains that it is, “a major advance is to be able to align and arrange individual atoms so we can hold on to them and track them.”
Prof. Scott Aaronson speaks with New Scientist reporter Jacob Aron about Google’s D-Wave quantum computer. “This is certainly the most impressive demonstration so far of the D-Wave machine’s capabilities,” says Aaronson. “And yet, it remains totally unclear whether you can get to what I’d consider ‘true quantum speedup’ using D-Wave’s architecture.”
Professor Vladan Vuletić and his colleagues have successfully developed a new technique for simulating friction between two surfaces at the nanoscale, reports Davide Castelvecchi for Nature. The research “could bring enormous savings by reducing friction between the moving parts of machines,” writes Castelvecchi.
Robert Ferris writes for CNBC that MIT researchers have developed a new technique for creating surfaces that can slide past each other without friction. The researchers hope to use the technique to “build devices that can preserve themselves by being nearly immune to friction.”
New Scientist reporter Jacob Aron writes about MIT graduate student Theodore Yoder’s work upgrading a quantum search algorithm to make it more effective. The new algorithm lets users “hone in on specific answers without knowing in advance how many there are,” Aron explains.