Engineers have shown that a widely used method of detecting single photons can also count the presence of at least four photons at a time. The researchers say this discovery will unlock new capabilities in physics labs working ...
Quantum Physics
Dec 15, 2017
0
556
Superconductors carry electricity with perfect efficiency, unlike the inevitable waste inherent in traditional conductors like copper. But that perfection comes at the price of extreme cold—even so-called high-temperature ...
Superconductivity
Dec 5, 2017
0
311
Since their invention in 1962, semiconductor diode lasers have revolutionized communications and made possible information storage and retrieval in CDs, DVDs and Blu-ray devices. These diode lasers use inorganic semiconductors ...
Optics & Photonics
Nov 20, 2017
0
126
Zoom in on a crystal and you will find an ordered array of atoms, evenly spaced like the windows on the Empire State Building. But zoom in on a piece of glass, and the picture looks a bit messier—more like a random pile ...
Condensed Matter
May 30, 2017
4
3483
The discovery of a 'storm' layer created when superfluid helium flows across a rough surface has turned a century of understanding about one of the most important discoveries in quantum physics on its head.
General Physics
Mar 27, 2017
2
1348
One of the greatest mysteries of experimental physics is how so-called high-temperature superconducting materials work. Despite their name, high-temperature superconductors—materials that carry electrical current with no ...
Superconductivity
Nov 21, 2016
5
1863
University of Houston physicists report finding major theoretical flaws in the generally accepted understanding of how a superconductor traps and holds a magnetic field. More than 50 years ago, C.P. Bean, a scientist at General ...
Superconductivity
Apr 8, 2016
10
6581
Phosphine is one of the newest materials to be named a superconductor, a material through which electricity can flow with zero resistance.
Superconductivity
Feb 3, 2016
1
1611
Over the last seven years, Javier Sanchez-Yamagishi has built several hundred nanoscale stacked graphene systems to study their electronic properties. "What interests me a lot is that the properties of this combined system ...
Nanophysics
May 20, 2015
1
1218
In 2013 James Hone, Wang Fong-Jen Professor of Mechanical Engineering at Columbia Engineering, and colleagues at Columbia demonstrated that they could dramatically improve the performance of graphene—highly conducting two-dimensional ...
Nanomaterials
Apr 27, 2015
0
1672
