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.
Particles trapped in twisted materials and...
on June 1, 2020 at 11:09 am
A paper by the Quantum Photonics Lab at Heriot-Watt, published today in top-tier Nature Materials, identifies how to trap interlayer excitons (IXs) and their quantum fingerprints. The IXs are trapped by the interaction of two sheets of atoms made of different transition metal dichalcogenides (TMDs), which are stacked together with a small twist to form a moiré pattern.
New 'whirling' state of matter discovered in an...
on May 28, 2020 at 6:00 pm
The strongest permanent magnets today contain a mix of the elements neodymium and iron. However, neodymium on its own does not behave like any known magnet, confounding researchers for more than a half-century. Physicists at Radboud University and Uppsala University have shown that neodymium behaves like a self-induced spin glass, meaning that it is composed of a rippled sea of many tiny whirling magnets circulating at different speeds and constantly evolving over time. Understanding this new […]
A new scheme for satellite-based quantum-secure...
on May 27, 2020 at 1:30 pm
Researchers at the University of Science and Technology of China have recently introduced a new satellite-based quantum-secure time transfer (QSTT) protocol that could enable more secure communications between different satellites or other technology in space. Their protocol, presented in a paper published in Nature Physics, is based on two-way quantum key distribution in free space, a technique to encrypt communications between different devices.
Quantum simulators for gauge theories
on May 27, 2020 at 12:12 pm
To simulate in a laboratory what happens in particle accelerators has been an ambitious goal in the study of the fundamental forces of nature pursued by high-energy physicists for many years. Now, thanks to research conducted by the groups of statistical physics of SISSA—Scuola Internazionale Superiore di Studi Avanzati and the "Abdus Salam" International Centre for Theoretical Physics (ICTP), that goal is closer to reach.
A nice day for a quantum walk
on May 26, 2020 at 4:52 pm
Researchers at the Center for Quantum Information and Quantum Biology at Osaka University used trapped ions to demonstrate the spreading of vibrational quanta as part of a quantum random walk. This work relies on their exquisite control of individual ions using lasers, and can lead to new quantum simulations of biological systems.
Quantum Physics News -- ScienceDaily News on quantum physics. Read current research on everything from quantum mechanics to quantum dots. Was Albert Einstein right?
A potential explanation for urban smog
on May 27, 2020 at 7:02 pm
The effect of nitric acid on aerosol particles in the atmosphere may offer an explanation for the smog seen engulfing cities on frosty days.
Physicists measure a short-lived radioactive...
on May 27, 2020 at 5:31 pm
Researchers have combined the power of a super collider with techniques of laser spectroscopy to precisely measure a short-lived radioactive molecule, radium monofluoride, for the first time.
Next-gen laser facilities look to usher in new...
on May 26, 2020 at 3:13 pm
Chirped pulse amplification increases the strength of laser pulses in many of today's highest-powered research lasers, and as next-generation laser facilities look to push beam power, physicists expect a new era for studying plasmas. Researchers have released a study taking stock of what upcoming high-power laser capabilities are poised to teach us about relativistic plasmas subjected to strong-field quantum electrodynamics processes and introducing the physics of relativistic plasma in […]
Lossless conduction at the edges
on May 26, 2020 at 3:13 pm
Atomically thin layers of the semimetal tungsten ditelluride conduct electricity losslessly along narrow, one-dimensional channels at the crystal edges. The material is therefore a second-order topological insulator. By obtaining experimental proof of this behavior, physicists have expanded the pool of candidate materials for topological superconductivity.
Scientists solve half-century-old magnesium dimer...
on May 22, 2020 at 7:45 pm
Magnesium dimer (Mg2) is a fragile molecule consisting of two weakly interacting atoms held together by the laws of quantum mechanics. It has recently emerged as a potential probe for understanding fundamental phenomena at the intersection of chemistry and ultracold physics, but its use has been thwarted by a half-century-old enigma -- five high-lying vibrational states that hold the key to understanding how the magnesium atoms interact but have eluded detection for 50 years.