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Vor 3 Stunden · Quantum mechanics. In particle physics, the Dirac equation is a relativistic wave equation derived by British physicist Paul Dirac in 1928. In its free form, or including electromagnetic interactions, it describes all spin-1/2 massive particles, called "Dirac particles", such as electrons and quarks for which parity is a symmetry. It is ...
Vor einem Tag · Richard Feynman in 1984. In theoretical physics, a Feynman diagram is a pictorial representation of the mathematical expressions describing the behavior and interaction of subatomic particles. The scheme is named after American physicist Richard Feynman, who introduced the diagrams in 1948. The interaction of subatomic particles can be complex ...
Vor einem Tag · Quantum mechanics. Quantum entanglement is the phenomenon of a group of particles being generated, interacting, or sharing spatial proximity in such a way that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance.
Vor einem Tag · NASA Mission to Study Mysteries in the Origin of Solar Radio Waves. Jul 08, 2024. Article. NASA’s CubeSat Radio Interferometry Experiment, or CURIE, is scheduled to launch July 9, 2024, to investigate the unresolved origins of radio waves coming from the Sun. CURIE will investigate where solar radio waves originate in coronal mass ejections ...
Vor 3 Stunden · The new Director for African Union Department in charge of Education, Science, Technology and Innovation is a full Professor of Physics at the Abdou Moumouni University of Niamey (Niger). He can boast of about twenty years of experience in higher education, research as well as management of academic and scientific institutions. Prof. Madougou holds a PhD in physics (Toulouse III), a Master's ...
Vor einem Tag · In QBism, all quantum states are representations of personal probabilities. In physics and the philosophy of physics, quantum Bayesianism is a collection of related approaches to the interpretation of quantum mechanics, the most prominent of which is QBism (pronounced "cubism"). QBism is an interpretation that takes an agent's actions and ...
Vor 9 Stunden · In this article, we combine the periodic sinc basis set with a curvilinear coordinate system for electronic structure calculations. This extension allows for variable resolution across the computational domain, with higher resolution close to the nuclei and lower resolution in the inter-atomic regions. We address two key challenges that arise while using basis sets obtained by such a ...
