Once a photon has ejected an electron from a helium atom, it is possible to calculate the probable position of the remaining electron. The most likely position of the electron is shown in the image as the brightest area...
Stylized depiction of quantum dots on a semiconductor surface based on an atomic-force microscope image. Credit: Joint Quantum Institute From credit card numbers to bank account information, we transmit sensitive digital information over the internet every day. Since the 1990s,...
IMAGE CREDIT: WIKIPEDIA A new theory of gravity might explain the curious motions of stars in galaxies. Emergent gravity, as the new theory is called, predicts the exact same deviation of motions that is usually explained by invoking dark matter....
By sending light through a material several times, it is possible to find a path through which much more light can pass through the material. The researchers then measure the amount of light that makes it through this path...
Schematics above show light input (green) entering opposite ends of a single device. When the phase of light input 1 is faster than that of input 2 (left panel), the gain medium dominates, resulting in coherent amplification of the...
Keeping a close eye on everything: Christian Ast checks the connections of the scanning tunneling microscope (top). Researchers in the Nanoscale Science Department conduct their experiments in this instrument at lowest temperatures of a fifteen thousandth of a degree...
A laser pulse hits a helium atom. One of the electron is ripped out of the atom, the other electron may change its quantum state. Credit: TU Wien When a quantum system changes its state, this is called a quantum...
“…f a fluorescence microscope’s resolution is set at 2 micrometers, our technique can have 300 nanometer resolution — about a sixfold improvement over regular microscopes,” says MIT graduate student Frederick Sangyeon Cho. “The idea is very simple but very...
An optical lattice lines up gaseous cesium atoms. As the lattice is shaken, the atoms are driven across a ferromagnetic phase transition.Credit: Logan W. Clark, Lei Feng and Cheng Chin New research conducted at the University of Chicago has confirmed...
Photons are emitted from a galaxy QSO B0218+357 in the direction of the Earth. Due to the gravitational effect of the intervening galaxy B0218+357G photons form two paths that reach Earth with a delay of about 11 days. Photons...
A scanning tunneling microscope image shows two three-wheeled nanoroadsters created at Rice University and tested at the University of Graz. The light-activated roadsters, next to their molecular models, reached a top speed of 23 nanometers per hour. Credit: Alex...