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.