Physicists propose a new theory to explain one dimensional quantum liquids formation

One dimensional quantum lattice liquids. Credit: I. Morera et al. Phys. Rev. Lett Liquids are ubiquitous in Nature: from the water that we consume daily to superfluid helium which is a quantum liquid appearing at temperatures as low as only a few degrees above the absolute zero. A common feature of these vastly different liquids […]

Physicists observe competition between magnetic orders — ScienceDaily

They are as thin as a hair, only a hundred thousand times thinner — so-called two-dimensional materials, consisting of a single layer of atoms, have been booming in research for years. They became known to a wider audience when two Russian-British scientists were awarded the Nobel Prize in Physics in 2010 for the discovery of […]

Physicists observe competition between magnetic orders

The system: A crystal lattice made of light traps atoms in several bilayer sheets.Tomographic images show the (spin-) densities in a single layer. They provide information about the magnetic ordering of the atoms. The image on the right shows the density of one layer averaged over twelve realizations (orange red). Credit: Marcell Gall, Nicola Wurz […]

Physicists give Schrodinger’s cat a cheshire grin

“I’ve often seen a cat without a grin,” thought Alice. “But a grin without a cat! It’s the most curious thing I ever saw in all my life!” It’s an experience eminent physicist Yakir Aharonov can relate to. Together with fellow Israeli physicist Daniel Rohrlich, he’s shown theoretically how a particle might show its face in a […]

Righting a wrong, nuclear physicists improve precision of neutrino studies

At the University of Notre Dame, part of the Oak Ridge Deuterated Spectroscopic Array measured a reaction that causes noise in some neutrino detectors. Credit: Michael Febbraro/ORNL, U.S. Dept. of Energy Led by the Department of Energy’s Oak Ridge National Laboratory, a new study clears up a discrepancy regarding the biggest contributor of unwanted background […]

Physicists observe the emergence of collective behaviour — ScienceDaily

Phase transitions describe dramatic changes in properties of a macroscopic system — like the transition from a liquid to a gas. Starting from individual ultracold atoms, Heidelberg University physicists were able to observe the emergence of such a transition with an increasing number of particles. The research work was carried out in the field of […]

Physicists recorded the flowing sound of a ‘perfect’ fluid for the first time

For the first time, physicists have recorded sound waves moving through a perfect fluid with the lowest possible viscosity, as permitted by the laws of quantum mechanics, an ascending glissando of the frequencies at which the fluid resonates. This research can help us to understand some of the most extreme conditions in the Universe – […]