Ordinarily, light particles—photons—don't interact. If two photons collide in a vacuum, they simply pass through each other.
Quantum Physics
Jun 19, 2017
3
1278
(Phys.org)—In 1912, chemist Walther Nernst proposed that cooling an object to absolute zero is impossible with a finite amount of time and resources. Today this idea, called the unattainability principle, is the most widely ...
Writers and scientists throughout history have searched for an apt technological analogy for the human brain, often comparing it to a computer. For Pulkit Grover, Carnegie Mellon University assistant professor of electrical ...
Engineering
Feb 16, 2017
0
95
Quantum replicants of responsive systems can be more efficient than classical models, say researchers from the Centre for Quantum Technologies in Singapore, because classical models have to store more past information than ...
Quantum Physics
Feb 13, 2017
3
1273
When future users of quantum computers need to analyze their data or run quantum algorithms, they will often have to send encrypted information to the computer.
Quantum Physics
Dec 14, 2016
0
1485
At two miles long and five inches in diameter, the West Antarctic Ice Sheet Divide (WAIS) ice core is a tangible record of the last 68,000 years of our planet's climate.
Earth Sciences
Dec 6, 2016
3
1078
(Phys.org)—The change point problem is a concept in statistics that pops up in a wide variety of real-world situations, from stock markets to protein folding. The idea is to detect the exact point at which a sudden change ...
For more than a century and a half of physics, the Second Law of Thermodynamics, which states that entropy always increases, has been as close to inviolable as any law we know. In this universe, chaos reigns supreme.
Quantum Physics
Oct 20, 2016
10
3382
(Phys.org)—One of the most ambitious endeavors in quantum physics right now is to build a large-scale quantum network that could one day span the entire globe. In a new study, physicists have shown that describing quantum ...
One of the most striking discoveries of quantum information theory is the existence of problems that can be solved in a more efficient way with quantum resources than with any known classical algorithm.
Quantum Physics
May 27, 2016
0
844
