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$doc.title

... Waves/particles in a 2-D box (cont.) Ψ is specified by the quantum numbers n & m There are as many states as there are possible n,m combinations (N.B. n & m are positive) Two distinct wave functions are DEGENERATE if they have the same energy. e.g. the states 1,3 and 3,1 are degenerate if a = b ...
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Why are the Co-based 115 compounds different?: The case study of
Why are the Co-based 115 compounds different?: The case study of

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14 - University of Utah Physics

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What is a field?

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... 1. Students will explain the principles of electric potential energy. 2. Students will relate electric potential to potential difference. 3. Students will connect electric potential to potential energy. 4. Students will explain the relationship between electric potential and electric field. 5. Stude ...
Lecture 6 - Colorado Mesa University
Lecture 6 - Colorado Mesa University

... Self%inductance•  Self%inductance-occurs-when-the-changing-fluxthrough-a-circuit-arises-from-the-circuit-itself.–  As-the-current-increases,-the-magnetic-flux-through-aloop-due-to-this-current-also-increases.–  The-increasing-flux-induces-an-emf-that-opposes-thechange-in-magnetic-flux.–  As-the-mag ...
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How do We Make a Uniform Electric Field?

... in the position shown above. It passes through a uniform electric field between two oppositely charged horizontal plates (region I) and a field–free region (region II) before eventually striking a screen at a distance of 0.08 meter from the edge of the plates. The plates are 0.04 meter long and are ...
Chapter 26. Electric Charges and Forces
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VERSION C 1. Short Answer Problems (5 points each) (a) (5 points

pdf file - High Point University
pdf file - High Point University

< 1 ... 455 456 457 458 459 460 461 462 463 ... 661 >

Aharonov–Bohm effect

The Aharonov–Bohm effect, sometimes called the Ehrenberg–Siday–Aharonov–Bohm effect, is a quantum mechanical phenomenon in which an electrically charged particle is affected by an electromagnetic field (E, B), despite being confined to a region in which both the magnetic field B and electric field E are zero. The underlying mechanism is the coupling of the electromagnetic potential with the complex phase of a charged particle's wavefunction, and the Aharonov–Bohm effect is accordingly illustrated by interference experiments.The most commonly described case, sometimes called the Aharonov–Bohm solenoid effect, takes place 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 negligible in the region through which the particle passes and the particle's wavefunction being negligible inside the solenoid. This phase shift has been observed experimentally. 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, but this has no experimental confirmation yet. A separate ""molecular"" Aharonov–Bohm effect was proposed for nuclear motion in multiply connected regions, but this has been argued to be a different kind of geometric phase as it is ""neither nonlocal nor topological"", depending only on local quantities along the nuclear path.Werner Ehrenberg and Raymond E. Siday first predicted the effect in 1949, and similar effects were later published by Yakir Aharonov and David Bohm in 1959. After publication of the 1959 paper, Bohm was informed of Ehrenberg and Siday's work, which was acknowledged and credited in Bohm and Aharonov's subsequent 1961 paper.Subsequently, the effect was confirmed experimentally by several authors; a general review can be found in Peshkin and Tonomura (1989).
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