For the first time, physicists have developed a technique that can peer deep beneath the surface of a material to identify the energies and momenta of electrons there.
General Physics
Nov 16, 2017
0
922
When a ballerina pirouettes, twirling a full revolution, she looks just as she did when she started. But for electrons and other subatomic particles, which follow the rules of quantum theory, that's not necessarily so. When ...
Quantum Physics
May 25, 2017
2
1958
A University of California, Riverside assistant professor has combined photosynthesis and physics to make a key discovery that could help make solar cells more efficient. The findings were recently published in the journal ...
Nanophysics
Nov 30, 2016
9
7345
Quantum computers promise speedy solutions to some difficult problems, but building large-scale, general-purpose quantum devices is a problem fraught with technical challenges.
Quantum Physics
Aug 3, 2016
0
2050
Harnessing the power of the sun and creating light-harvesting or light-sensing devices requires a material that both absorbs light efficiently and converts the energy to highly mobile electrical current. Finding the ideal ...
Nanophysics
Apr 8, 2016
2
1403
In 1655 the English mathematician John Wallis published a book in which he derived a formula for pi as the product of an infinite series of ratios. Now researchers from the University of Rochester, in a surprise discovery, ...
Quantum Physics
Nov 10, 2015
25
21727
Symmetry permeates nature, from the radial symmetry of flowers to the left-right symmetry of the human body. As such, it provides a natural way of classifying objects by grouping those that share the same symmetry. This is ...
Quantum Physics
Jul 28, 2015
1
1955
(Phys.org)—It was an interesting week for physics as a team of researchers with the University of California and the University of Tokyo proposed a new definition of time crystals—then proved such things don't exist—theory ...
(Phys.org)—It was an intriguing week for physics as a pair of theorists suggested that their quantum equation predicts the universe has no beginning and thus there was no Big Bang. In their paper published in Physics Letters ...
University of California, Berkeley, scientists have proved a fundamental relationship between energy and time that sets a "quantum speed limit" on processes ranging from quantum computing and tunneling to optical switching.
Quantum Physics
Jan 22, 2015
6
3904
