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Vor einem Tag · Wave–particle duality and uncertainty principles Photons in a Mach–Zehnder interferometer exhibit wave-like interference and particle-like detection at single-photon detectors. Photons obey the laws of quantum mechanics, and so their behavior has both wave-like and particle-like aspects. When a photon is detected by a measuring instrument ...
Vor 4 Tagen · In quantum mechanics, the two key points are that the position of the particle takes the form of a matter wave, and momentum is its Fourier conjugate, assured by the de Broglie relation p = ħk, where k is the wavenumber.
Vor einem Tag · Electrons and a compact nucleus of protons and neutrons. Atoms are the basic particles of the chemical elements. An atom consists of a nucleus of protons and generally neutrons, surrounded by an electromagnetically bound swarm of electrons. The chemical elements are distinguished from each other by the number of protons that are in their atoms.
- 1.67×10−27 to 4.52×10−25 kg
- zero (neutral), or ion charge
Vor 5 Tagen · Wave-particle duality is the term for the fact that fundamental objects in the universe such as photons or electrons appear to exhibit aspects of either waves or particles depending on the experiment. Through the beginning of the twentieth century, light was widely accepted to be a wave while matter was understood to be comprised of ...
Vor 6 Tagen · Gravitational waves are propagating disturbances in the curvature of spacetime, caused by some of the most violent and energetic physical processes in the universe. A common analogy in general relativity considers gravity to be caused by masses warping a rubber sheet; smaller masses …
Vor 5 Tagen · Precision measurements with atom interferometers benefit from reducing the expansion rate of the atomic ensemble within the interferometric beam through matter-wave collimation. Here we ...
Vor 5 Tagen · STEMonstrations are short, 3–5-minute educational videos filmed by crewmembers aboard the International Space Station. They use the unique microgravity environment on station to demonstrate popular K-12 STEM topics. Classroom Connection: Properties of Water. Grade Levels: 6-8.
