Using Russia's Spektr-R space telescope (also known as RadioAstron), astronomers have conducted high-resolution observations of the blazar S5 0716+71. The results of these observations, presented in a paper published February ...
A team of researchers affiliated with several institutions in Austria and Germany has shown that introducing environmental noise to a line of ions can lead to enhanced transport of energy across them. In their paper published ...
Optical coherence tomography (OCT) is a light-based imaging technique currently used in clinical diagnostics to examine organs in vivo. The technique uses interferometry; in which light reflected from an examined object combines ...
In the world of quantum computing, interaction is everything.
Quantum Physics
Dec 6, 2018
3
331
Optical frequency combs can enable ultrafast processes in physics, biology, and chemistry, as well as improve communication and navigation, medical testing, and security. The Nobel Prize in Physics 2005 was awarded to the ...
Optics & Photonics
Oct 8, 2018
4
257
Quantum communication and cryptography are the future of high-security communication. But many challenges lie ahead before a worldwide quantum network can be set up, including propagating the quantum signal over long distances. ...
Quantum Physics
Jul 23, 2018
0
823
Data travels through thousands of miles of fiber optic cables underneath the world's oceans—via pulses of light. And according to experts, the data in these cables is at great risk of being intercepted. However, a newly ...
Optics & Photonics
Jan 11, 2018
0
306
An accurate analog clock tick-tick-ticks with a constant precision and well known frequency: one tick per second. The longer you let it tick, the better to test its accuracy —10 times as long corresponds to a ten-fold improvement ...
Quantum Physics
Nov 2, 2017
3
133
Optical frequency combs are widely-used, high-precision tools for measuring and detecting different frequencies—a.k.a. colors—of light. Unlike conventional lasers, which emit a single frequency, these lasers emit multiple ...
Optics & Photonics
Oct 17, 2017
0
804
Multiplexing, the ability to send multiple signals through a single channel, is a fundamental feature of any voice or data communication system. An international research team has demonstrated for the first time a method ...
Optics & Photonics
Aug 10, 2017
2
5436
