These are organized by a classification scheme developed exclusively for Cosma. More…
particle : any of the basic units of matter and energy (such as a molecule, atom, proton, electron, or photon) — Webster
Particle is a small localized object to which can be ascribed several physical or chemical properties such as volume, density or mass. They vary greatly in size or quantity, from subatomic particles like the electron, to microscopic particles like atoms and molecules, to macroscopic particles like powders and other granular materials. Particles can also be used to create scientific models of even larger objects depending on their density, such as humans moving in a crowd or celestial bodies in motion. — Wikipedia
Particle physics (also high energy physics) is the branch of physics that studies the nature of the particles that constitute matter and radiation. Although the word particle can refer to various types of very small objects (e.g. protons, gas particles, or even household dust), particle physics usually investigates the irreducibly smallest detectable particles and the fundamental interactions necessary to explain their behavior. By our current understanding, these elementary particles are excitations of the quantum fields that also govern their interactions. The currently dominant theory explaining these fundamental particles and fields, along with their dynamics, is called the Standard Model. — Wikipedia
The Standard Model (CERN)
Particle Physics (Eric Weisstein’s World of Physics, Wolfram Research)
Quantum Physics (Eric Weisstein’s World of Physics, Wolfram Research)
Particle Physics (Wolfram Alpha)
Quantum Physics (Wolfram Alpha)
Quantum Physics News Phys.org provides the latest news on quantum physics, wave particle duality, quantum theory, quantum mechanics, quantum entanglement, quantum teleportation, and quantum computing.
Stacked graphene layers act as a mirror for...
on August 20, 2019 at 1:45 pm
Stacked layers of graphene can act like a mirror for beams of electrons. Physicists Daniël Geelen and colleagues discovered this using a new type of electron microscope. In an article in Physical Review Letters, they describe their results, which could lead to the development of optics for electron beams instead of light.
Measuring temperatures similar to those occurring...
on August 20, 2019 at 1:40 pm
Collisions between neutron stars are fascinating cosmic events that lead to the formation of numerous chemical elements. Temperatures during these collisions are exponentially high, typically reaching up to hundreds of billions of degrees Celsius.
Watching electrons using extreme ultraviolet light
on August 20, 2019 at 12:01 pm
A new technique developed by a team at MIT can map the complete electronic band structure of materials at high resolution. This capability is usually exclusive to large synchrotron facilities, but now it is available as a tabletop laser-based setup at MIT. This technique, which uses extreme ultraviolet (XUV) laser pulses to measure the dynamics of electrons via angle-resolved photoemission spectroscopy (ARPES), is called time-resolved XUV ARPES.
Toward an 'orrery' for quantum gauge theory
on August 20, 2019 at 11:00 am
Physicists at ETH Zurich have developed a new approach to couple quantized gauge fields to ultracold matter. The method might be the basis for a versatile platform to tackle problems ranging from condensed-matter to high-energy physics.
Scientists unveil first quantum simulation of 3-D...
on August 19, 2019 at 3:03 pm
Physicists from the Hong Kong University of Science and Technology (HKUST) and Peking University (PKU) have successfully created the world's first 3-D simulation of topological matter consisting of ultracold atoms. Previous attempts at topological matter simulations were limited to lower dimensions, due to challenges on how to characterize 3-D band topology in atomic systems. This breakthrough paves an opening to further examining new topological matter that cannot be well realized in solids. […]
Quantum Physics News -- ScienceDaily News on quantum physics. Read current research on everything from quantum mechanics to quantum dots. Was Albert Einstein right?
Towards an 'orrery' for quantum gauge theory
on August 19, 2019 at 8:43 pm
Physicists have developed a new approach to couple quantized gauge fields to ultracold matter. The method might be the basis for a versatile platform to tackle problems ranging from condensed-matter to high-energy physics.
Spinning lightwaves on a one-way street
on August 19, 2019 at 3:27 pm
Researchers have created a quantum spin wave for light. This can be a carrier of information for future nanotechnologies but with a unique twist: they only flow in one direction.
Lab-based dark energy experiment narrows search...
on August 19, 2019 at 3:00 pm
An experiment to test a popular theory of dark energy has found no evidence of new forces, placing strong constraints on related theories.
First quantum simulation of 3D topological matter...
on August 19, 2019 at 2:07 pm
Physicists have successfully created the world's first 3D simulation of topological matter consisting of ultracold atoms.
Researchers demonstrate three-dimensional quantum...
on August 16, 2019 at 2:10 pm
The quantum Hall effect (QHE), which was previously known for two-dimensional (2D) systems, was predicted to be possible for three-dimensional (3D) systems by Bertrand Halperin in 1987: Now it has been demonstrated.