Latest Quantum field theory Stories

University of Nevada, Reno team findings to be published in Physical Review Letters articleIn a forthcoming Physical Review Letters article, a group of physicists at the University of Nevada, Reno are reporting a refined analysis of experiments on violation of mirror symmetry in atoms that sets new constraints on a hypothesized particle, the extra Z-boson.Andrei Derevianko, an associate professor in the College of Science's Department of Physics, who has conducted groundbreaking research to...

The Large Hadron Collider is an enormous particle accelerator whose 17-mile tunnel straddles the borders of France and Switzerland. A group of physicists at the University of Nevada, Reno has analyzed data from the accelerator that could ultimately prove or disprove the possibility of a fifth force of nature.As the largest science instrument ever built, the LHC has the science community buzzing with excitement as it may help in understanding the inner workings of Nature.Remarkably, some of...

A clock that is so precise that it loses only a second every 300 million years "“ this is the result of new research in ultra cold atoms. The international collaboration is comprised of researchers from the University of Colorado, USA and the Niels Bohr Institute at the University of Copenhagen and the results have just been published in the prestigious scientific journal, Science.An atomic clock consists of gas atoms captured in a magnetic field where they are held stationary with precise...

Ohio State University researchers have developed a new strategy to overcome one of the major obstacles to a grand challenge in physics.What they've discovered could eventually aid high-temperature superconductivity, as well as the development of new high-tech materials.In 2008, the Defense Advanced Research Projects Agency (DARPA) chose three multi-university teams to tackle an ambitious problem: trap atoms inside a light crystal -- also called an "optical lattice" -- that can simulate exotic...

Research team succeeds in observing electrons in the quantum spin Hall state; Material suitable for spin sources and quantum computing in information processingAn international research team has succeeded in gaining an in-depth insight into an unusual phenomenon, as reported in the current edition of the high-impact journal "Science". The researchers succeeded for the first time in directly measuring the spin of electrons in a material that exhibits the quantum spin Hall effect,...

Scientists say they have discovered the mechanism that causes tiny objects to levitate, a discovery that may pave the way for the ability to create nanotechnology machines in the future. The apparent levitation was observed as a result of repulsive force between a thin sheet of silica and a small gold-plated bead, Harvard physicist Federico Capasso and colleagues reported in the journal Nature.This so-called Casimir force of repulsion could be replicated and used to create friction-free...

Take a gold sample the size of the head of a push pin, shoot a laser through it, and suddenly more than 100 billion particles of anti-matter appear.The anti-matter, also known as positrons, shoots out of the target in a cone-shaped plasma "jet."This new ability to create a large number of positrons in a small laboratory opens the door to several fresh avenues of anti-matter research, including an understanding of the physics underlying various astrophysical phenomena such as black holes and...

By Dennis Overbye A U.S. and two Japanese physicists won the Nobel Prize in Physics on Tuesday for their work exploring the hidden symmetries between elementary particles that are the deepest constituents of nature. Yoichiro Nambu, of the University of Chicago's Enrico Fermi Institute, will receive half of the 10 million kroner prize, or about $1.4 million, awarded by the Royal Swedish Academy of Sciences. Makoto Kobayashi, of the High Energy Accelerator Research Organization in Tsukuba,...

By Dan Vergano Insights into the peculiarities of the smallest subatomic particles and the existence of the universe have netted one American and two Japanese theorists the 2008 Nobel Prize in physics. The Royal Swedish Academy of Sciences awarded half of the $1.4 million prize Tuesday to Yoichiro Nambu, 87, of the University of Chicago and the remainder to Makoto Kobayashi, 64, of Japan's High Energy Accelerator Research Organization and Toshihide Maskawa, 68, of Kyoto University. The...

World in brief STOCKHOLM The award of the 2008 Nobel Prize in physics to two Japanese scientists and a Japanese American for helping explain why the universe is asymmetrical, and thus fit for life, prompted an angry response from Italy's National Institute of Nuclear Physics yesterday. Half the 10m kroner (800,000) prize went to Yoichiro Nambu and the other to Makoto Kobayashi and Toshihide Maskawa of Japan for their discoveries in spontaneous broken symmetry in sub- atomic physics....