UQ physicists have been seeking to understand the time travel’s underlying laws. Credit: JMortonPhoto.com & OtoGodfrey.com Paradox-free time travel is theoretically possible, according to the mathematical modeling of a prodigious University of Queensland undergraduate student. Fourth-year Bachelor of Advanced Science (Honours) student Germain Tobar has been investigating the possibility of […]

This illustration shows a crystal lattice of strontium ruthenate responding to various sound waves sent via resonant ultrasound spectroscopy as the material cools through its superconducting transition at 1.4 kelvin (minus 457 degrees Fahrenheit). The highlighted deformation suggests the material may be a new type of superconductor. Credit: Courtesy of […]

ANIMATION Physicists from Lancaster University have established why objects moving through superfluid helium-3 lack a speed limit in a continuation of earlier Lancaster research. Helium-3 is a rare isotope of helium, in which one neutron is missing. It becomes superfluid at extremely low temperatures, enabling unusual properties such as a […]

ORNL researchers developed a quantum, or squeezed, light approach for atomic force microscopy that enables measurement of signals otherwise buried by noise. Credit: Raphael Pooser, ORNL, U.S. Dept. of Energy Researchers at the Department of Energy’s Oak Ridge National Laboratory used quantum optics to advance state-of-the-art microscopy and illuminate a […]

A five-phase equilibrium with at the top a gas phase with unaligned rods (isotropic phase), then a liquid phase with rods pointing in about the same direction (nematic liquid crystal), subsequently a liquid phase with rods lying in different layers (smectic liquid crystal), and two solid phases at the bottom. […]

For decades Z-X Shen has ridden a wave of curiosity about the strange behavior of electrons that can levitate magnets. Zhi-Xun Shen vividly remembers his middle school physics teacher demonstrating the power of X-rays by removing a chunk of radioactive material from a jar stored in a cabinet, dropping it […]

Credit: MIPT Researchers at MIPT Laboratory of Terahertz Spectroscopy together with their Russian and international colleagues discovered a new phase of nanoconfined water; separate water molecules that are confined within nanocavities formed by ions of cordierite crystal lattice. The first reliable experimental observation of a phase transition in a network […]

Schematic diagram showing both the magnetism and the conductive behavior on the surface of MnBi2Te4. The magnetism points uniformly upward, as shown by the red arrows, and the surface electrons, represented by the hourglass structures, are conductive because the top and bottom halves touch at the vertex with no ‘gap’ […]

Credit: MIPT While 100-nanometer thin films of vanadium dioxide (VO2) do not normally conduct electricity, their resistance drops up to 100,000 times when slightly heated. This may happen under applied voltage, for example. That property is used to create high-speed switchable devices and sensors for direct current or alternating signal in […]