Aharonov Bohm effect
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The Aharonov Bohm effect, sometimes called the Ehrenberg Siday Aharonov Bohm effect, is a quantum mechanical phenomenon by which an electrically charged particle is affected by the electromagnetic potential A in regions in which both the magnetic field B and electric field E are zero. In general, the profound consequence of Aharonov Bohm effect was the realisation that the electromagnetic potential offers a more complete description of electromagnetism than the electric and magnetic fields can. In classical electromagnetism the two descriptions were equivalent. With the addition of quantum the...
The Aharonov Bohm effect, sometimes called the Ehrenberg Siday Aharonov Bohm effect, is a quantum mechanical phenomenon by which an electrically charged particle is affected by the electromagnetic potential A in regions in which both the magnetic field B and electric field E are zero. In general, the profound consequence of Aharonov Bohm effect was the realisation that the electromagnetic potential offers a more complete description of electromagnetism than the electric and magnetic fields can. In classical electromagnetism the two descriptions were equivalent. With the addition of quantum theory, though, the electromagnetic potential A is seen as being more fundamental or "real"; the E and B fields can be derived from the potential A, but the potential can not be derived from the E and B fields. Furthermore some physical effects are dependent only on A, which the E and B fields are simply unable to account for.Werner Ehrenberg and Raymond E. Siday first predicted the effect in 1949, and similar effects were later rediscovered by Aharonov and Bohm in 1959.
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