Sentences with phrase «of electron waves»

They visualized interference fringes and the pattern of flow of electron waves from a quantum point contact, made an imaging electron wave interferometer, and imaged magnetic focusing in GaAs / AlGaAs, and they have imaged the electron cyclotron orbit in graphene / hBN structures.
By reading and analyzing this current, FAU researchers have found that quantum mechanical interference of electron waves can be used to control current on extremely short time scales.
Following their 2012 paper, Mayboroda and Filoche looked for ways to extend the landscape function from mechanical vibrations to the quantum world of electron waves.
The asymmetric temporal shape of electron wave packets emitted through an autoionizing state further reveals the chiral character of strongly correlated electronic dynamics.
However, observing size quantization of charge carriers in graphene nanoconstrictions has, until now, proved elusive due to the high sensitivity of the electron wave to disorder.
When the plane wave returns and crosses the molecule, it produces an interference pattern with the stationary part of the electron wave function, like two trains of water waves crossing and forming a checkerboard disturbance.

Not exact matches

Kinetic simulations and reduced modeling of longitudinal sideband instabilities in non-linear electron plasma waves
Kinetic Simulations of the Self - Focusing and Dissipation of Finite - Width Electron Plasma Waves
Space and time have seemed both continuous and discontinuous from Zeno's paradoxes up to current debates about the reality of electrons and photons: are they (continuous) waves or (discrete) particles?
The atom must be considered as a whole (in the wave - function of a 2 - electron atom, even the separate identity of the electrons is lost).
Nearing the very core of such awesomely huge black holes therein resides a centrality where atoms collide with such force that they release many of their atoms» electrons resulting in a wave of energy giving rise to particle jets being emitted from the said black hole's core.
Can an electron be thought of as both a wave and a particle?
The term originates in modern physics, where both wave and particle models are used for electrons, photons, and other inhabitants of the atomic world.
This curtain seemed to be raised by a few inches in the nineteen twenties, in those heroic days when de Broglie and Schroedinger de-materialized matter like the stage magician who makes the lady vanish from the box, while Heisenberg (1969) eased her out of the straitjacket of determinism and proclaimed that the principle of complementarity agreed «very nicely» with the mind - body dualism — the implication being that the particle aspect of the electron was analogous to the body, its wave aspect to the mind.
We know that the manifestations of the electron's wave aspect or corpuscular aspect depends on the experimental set - up.
In a technique that could help silicon quantum computers scale up, a particle of light (pink waves) was made to interact with the spin of a single electron (pink circle).
Scientists don't fully understand what's driving Jupiter's strongest auroras, but data gathered by the orbiting Juno spacecraft hint that the electrons generating Jupiter's polar glows may be accelerated by turbulent waves in the planet's magnetic field — a process somewhat akin to surfers being driven shoreward ahead of breaking ocean waves, the researchers report today in Nature.
There the radio signals will excite electrons and turn them into waves of relatively hot ionized gas, or plasma, in a narrow slice of sky.
They have used this technique to precisely tailor the shape of an atomic electron's wave function, in effect engineering «designer wave functions.»
According to the orthodox interpretation of quantum mechanics (although «orthodox» seems an odd description for such a radical world view), subatomic entities such as electrons or photons are either waves or particles — depending on how the physicist chooses to observe them.
Their experiment confirmed the suspicions of Louis de Broglie, who had suggested the wave nature of electrons in 1924.
Crucially, the pattern was a projection of the spacings of the energy levels in the hydrogen atom, as laid out in the wave function, with bright rings where electrons were present and dark lanes where they were not (Physical Review Letters, doi.org/mmz).
The ripples spreading out below the pulsar like waves on a lake show where streams of electrons and positrons, shooting away from the pulsar at nearly the speed of light, begin to bunch up along the pulsar's changing magnetic field.
«The exact shape of the laser wave determines whether or not the electron hits the atom and with which energy this collision takes place,» says Stefan Haessler.
Measuring the position of a single electron «collapses» the wave function, forcing it to pick a particular position, but that alone is not representative of its normal, quantum presence in the atom.
What's important are not the individual electrons or radio waves that get transmitted from your computer but the pattern of bits they describe.
Instead of relying on light waves emitted by electrons, it would use radiation emitted when the nucleus is excited to a high energy state, and then drops into a lower energy state.
Matter wave tractor beams could be made with beams of electrons, Novitsky says.
As you rightly say there began two theories of quantum mechanics: The Schrödinger one, where you look at things like electrons, subatomic matter, in terms of waves, you look at their behavior in terms of waves.
The researchers direct a beam of electrons onto a thin, dielectric foil, where the electron wave is modulated by irradiation with an orthogonally oriented laser.
Low - energy X-rays (red) in the image show expanding debris from the supernova explosion and high energy X-rays (blue) show the blast wave, a shell of extremely energetic electrons.
To meet these requirements, Baum and Morimoto make use of the fact that electrons, as elementary particles, also possess wave - like properties and can behave as so - called wave packets.
The shock waves created by a supernova explosion, astronomers theorized, could generate enormous magnetic fields capable of accelerating electrons, protons, and other ions to nearly the speed of light.
BOSTON, MASSACHUSETTS — Physicists and engineers have greatly extended the distance that tiny, fleeting waves of electrons can travel on the surface of a metal.
Waves of vibrating electrons, freed by ultraviolet light from the sun, seem to be why radar beams bounce off the upper atmosphere
Some researchers hope to get around such problems by exploiting tiny waves of electrons that exist on the boundary between a metal and an electrical insulator such as glass or silicon.
Waves of electrons on surfaces of metals could lead to devices that shuttle light much like microchips manipulate charge
The energy loss function represents the level of interaction between the material and electromagnetic waves, and is expressed in terms of the change in the amount of energy lost from electrons and the change in momentum due to corresponding scattering events occurring in the material.
As they go, the waves slightly displace atoms in the semiconductor, shifting positive atomic nuclei off center from their surrounding electrons and subtly altering the electric charge of the atoms.
It will certainly tell us about the spatial extent and evolution of the chorus wave, which along with particle data from other instruments should tell us some things about electron energies.»
The key lies not in individual reactions between neutrinos and electrons, but in the way the vast numbers of neutrinos affect wave - like fluctuations in the density of electrons in the plasma, known as «plasma waves».
The novel experimental approach and the concept of the study itself were conceived after one of the paper's authors, Harvard University theoretical physicist Subir Sachdev, pondered the differing electron density wave behavior along the different bonds of the CuO2 unit cell.
Various lines of evidence, including observations from NASA's Fermi Gamma - ray Space Telescope, support the idea that shock waves from the expanding debris of stars that exploded as supernovas accelerate cosmic rays up to energies of 1,000 trillion electron volts (PeV).
In the above study, electrons in the conductor are described by the wave functions of quantum mechanics and the magnetic field is expressed as the U (1) gauge field.
In 1928 English physicist Paul Dirac did that with his equation describing an electron in terms of both its wave function (ψ)-- the quantum probability of its being in a particular place — and its mass times the speed of light squared (mc2), a relativistic interpretation of its energy.
«Unraveling the complex, intertwined electron phases in a superconductor: Scientists may have discovered a link between key components of the «electron density wave» state and the pseudogap phase in a high - temperature superconductor.»
It struck me that discussions of wave - particle duality lack a single word for the weird nature of photons or electrons...
Last year, along with researchers led by Brookhaven / Columbia University School of Engineering physicist Simon Billinge, the team established the first firm link between the disappearance of the density wave within the pseudogap phase and the emergence, as stated by Davis, of «universally free - flowing electrons needed for unrestricted superconductivity» [see: https://www.bnl.gov/newsroom/news.php?a=11637].
The same gauge fixing has been employed in Dr. Koizumi's study on superconductivity, where the gauge fixing is achieved by the energy minimum requirement under the constraint that the wave function be a single - valued function of the electron coordinates.
The new type of accelerator, known as a laser - plasma accelerator, uses pulses of laser light that blast through a soup of charged particles known as a plasma; the resulting plasma motion, which resemble waves in water, accelerates electrons riding atop the waves to high speeds.
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