Quantum Physics News

RSS

Trapped Quantum Fluid Can Measure Motion with Ultra-Precision

Tornado-like vortexes can be produced in bizarre fluids which are controlled by quantum mechanics, completely unlike normal liquids.

5 Dec 2012

Physicists Discover Elusive Dirac Electrons in Superconducting Material

In a discovery that helps clear a new path toward quantum computers, University of Michigan physicists have found elusive Dirac electrons in a superconducting material.

5 Dec 2012

Uncertainties in Blackbody Radiation Shift May Impose Limits on Accuracy of Atomic Clocks

No man is an island, entire of itself, said poet John Donne. And no atom neither. Even in the middle of intergalactic space, atoms feel the electromagnetic field---also known as the cosmic microwave background---left over by the Big Bang.

5 Dec 2012

$Novel Diffraction Spectrometer May Help Elucidate Quantum Mechanical Structure of Matter$

Novel Diffraction Spectrometer May Help Elucidate Quantum Mechanical Structure of Matter

Every photon in a laser beam marches in lockstep, at an identical wavelength that depends on what the laser is used for – for example, infrared lasers that drive the optic fiber internet. For many applications, lasers need to be precisely tuned to those wavelengths, and the wavelength-measuring instruments can be more expensive than the lasers themselves.

4 Dec 2012

Charged Quasi-Particles Can be Manipulated for Applications in Optoelectronics and Valleytronics

When the dry lubricant, molybdenum disulfide, is stripped down to a single layer of atoms, a tightly bound quasi-particle comprised of two electrons and a hole forms with unique spin and valley properties, researchers from Case Western Reserve University and colleagues discovered.

4 Dec 2012

Researchers Measure Temporal Profile of Free-Electron Laser X-ray Pulses with Femtosecond Precision

With their ultra short X-ray flashes, free-electron lasers offer the opportunity to film atoms in motion in complicated molecules and in the course of chemical reactions. However, for monitoring this motion, the arrival time and the temporal profile of the pulses which periodically illuminate the system, must be precisely known.

4 Dec 2012