Understanding Heisenberg's "magical" paper of July 1925: A new look at the calculational details
In July 1925 Heisenberg published a paper that ushered in the new era of quantum mechanics. This epoch-making paper is generally regarded as being difficult to follow, partly because Heisenberg provid...
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Quantum mechanical description of linear optics
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Linear optical networks with any number of modes are described quantum mechanically. We reformulate the conventional formal description based on input–output operator relations and obtain an intu...
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A simple design for an electronic speckle pattern interferometer
American Journal of Physics -- November 2004 -- Volume 72, Issue 11, pp. 1380-1384
Issue Date: November 2004
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- Erratum: "A simple design for an electronic speckle pattern interferometer" [Am. J. Phys. 72 (11), 1380–1384 (2004)]
Thomas R. Moore
Am. J. Phys. 73, 189 (2005)
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0002-9505 (print)
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An electronic speckle pattern interferometer suitable for use in an undergraduate laboratory is described. This interferometer can be built for a small fraction of the cost of a commercial version and is simple and inexpensive to build and understand. The interferometer is useful for visualizing the normal modes of vibrating objects as well as changes in index of refraction. ©2004 American Association of Physics Teachers.
| History: | Received 6 April 2004; accepted 10 June 2004 |
| Permalink: | http://dx.doi.org/10.1119/1.1778396 |