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 Aharonov-Bohm effect

The Aharonov-Bohm effect, sometimes called the Ehrenberg-Siday-Aharonov-Bohm effect, is a quantum mechanical phenomenon by which a charged particle is affected by electromagnetic fields in regions from which the particle is excluded. The earliest form of this effect was predicted by Werner Ehrenberg and R.E. Siday in 1949, and similar effects were later rediscovered by Aharonov and Bohm in 1959. Such effects are predicted to arise from both magnetic fields and electric fields, but the magnetic version has been easier to observe. In general, the profound consequence of Aharonov-Bohm effects is that knowledge of the classical electromagnetic field acting locally on a particle is not sufficient to predict its quantum-mechanical behavior.



After the 1959 paper was published, Bohm was informed that the effect had been predicted by Rory E. Siday and Werner Ehrenberg a decade earlier; Bohm and Aharonov duly cited this in their second paper (Peat, 1997, p. 192).



The most commonly described case, sometimes called the Aharonov-Bohm solenoid effect, is when the wave function of a charged particle passing around a long solenoid experiences a phase shift as a result of the enclosed magnetic field, despite the magnetic field being zero in the region through which the particle passes. This phase shift has been observed experimentally by its effect on interference fringes. (There are also magnetic Aharonov-Bohm effects on bound energies and scattering cross sections, but these cases have not been experimentally tested.) An electric Aharonov-Bohm phenomenon was also predicted, in which a charged particle is affected by regions with different electrical potentials but zero electric field, and this has also seen experimental confirmation. A separate "molecular" Aharonov-Bohm effect was proposed for nuclear motion in multiply-connected regions, but this has been argued to be essentially different, depending only on local quantities along the nuclear path (Sjqvist, 2002).



A general review can be found in Peshkin and Tonomura (1989).

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updated Sat. January 19, 2019

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... out of the blue, about the Aharonov–Bohm effect. I had just been reading about that, and so I said, “Sure.” And went on to briefly explain it.
Furthermore, the plane waves undergo an angular phase shift upon scattering, analogous to the Aharonov–Bohm effect in quantum mechanics.

Searching the CIA's declassified document database, published online after a MuckRock lawsuit, for documents on the Cold War missile ...
Quantum Tunneling and the Aharonov-Bohm Effect. May 14, 2014 — Although quantum tunneling has been observed on large scales, no one ...
The Aharonov–Bohm effect is a quantum mechanical phenomenon in which the wavefunction of an electrically charged particle, like an ...

Research published this month in the Proceedings of the National Academy of Sciences (PNAS) introduced a new quantum phenomenon ...
This paper states that the induced charge should not be neglected in the electric Aharonov-Bohm (A-B) effect. If the induced charge is taken ...

The title of the article is "Aharonov-Bohm effect with quantum tunneling in linear Paul trap." The Aharonov-Bohm (AB) effect was proposed by ...
The Aharonov-Casher effect is dual to the well-known Aharonov-Bohm effect [4], in which charged particles making a closed circuit around a ...
In the Aharonov-Bohm effect, proposed in 1959, quantum particles are affected in measurable ways by the classical electromagnetic potential, ...
This was also the first time that the public spotlight had been shone on the Aharonov-Bohm effect, which states that when two zero-field scalar wave beams are crossed, real physical effects can be affected within a distant interference zone or region ...
This was also the first time that the public spotlight had been shone on the Aharonov-Bohm effect, which states that when two zero-field scalar wave beams are crossed, real physical effects can be affected within a distant interference zone or region ...


 

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   effects
     aharonov‑bohm

named effects in physics:
     aharonov‑bohm
     barkhausen
     bernoulli
     biefeld‑brown
     boundary layer
     casimir
     cherenkov
     coanda
     compton
     coriolis
     doppler
     edison
     faraday
     ferroelectric
     hall
     josephson
     leidenfrost
     magnus
     meissner
     mossbauer
     photoelectric
     skin