The fundamental laws of physics are based on symmetries that determine the interactions between charged particles, among other things. Using ultracold atoms, researchers at Heidelberg University have experimentally constructed ...
Quantum Physics
Apr 27, 2020
0
3246
Scientists from the PTB and the Max Planck Institute for Nuclear Physics (MPIK), both Germany, have carried out pioneering optical measurements of highly charged ions with unprecedented precision. To do this, they isolated ...
Optics & Photonics
Jan 29, 2020
0
441
In quantum electrodynamics, the choice of gauge (i.e. specific mathematical formalism used to regulate degrees of freedom) can greatly influence the form of light-matter interactions. Interestingly, however, the "gauge invariance" ...
A new idea for smashing beams of elementary particles into one another could reveal how light and matter interact under extreme conditions that may exist on the surfaces of exotic astrophysical objects, in powerful cosmic ...
General Physics
May 23, 2019
4
843
Physicists at the Kastler Brossel Laboratory in Paris have reached a milestone in the combination of cold atoms and nanophotonics. Using fiber-addressable atoms, they have created the first wired atomic entangled state that ...
Optics & Photonics
Feb 5, 2019
0
256
Washington University in St. Louis announced that its X-Calibur instrument, a telescope that measures the polarization of X-rays arriving from distant neutron stars, black holes and other exotic celestial bodies, launched ...
Astronomy
Jan 2, 2019
0
77
Conventional computers store information in a bit, a fundamental unit of logic that can take a value of 0 or 1. Quantum computers rely on quantum bits, also known as a "qubits," as their fundamental building blocks. Bits ...
Quantum Physics
Sep 27, 2018
0
398
Spontaneous symmetry breaking (SSB) is a physics phenomenon in which a symmetric system produces symmetry-violating states. Recently, extensive study shows that the parity-time symmetry breaking in open systems leads to exceptional ...
Quantum Physics
Sep 13, 2018
0
20
Quantum electrodynamics is a lot like baking a cake, and then trying to take apart the individual ingredients. At least, that is what physicist Dr. Ulrich Jentschura equates to the process of creating an equation that can ...
General Physics
Apr 25, 2017
0
7
Scientists from the ATLAS collaboration at the LHC have found evidence for light-by-light scattering, in which two photons interact and change their trajectory. Researchers from DESY, the Johannes Gutenberg University Mainz ...
General Physics
Feb 28, 2017
11
233
