File:HahnEchoStillsGWM highRes.tif
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![File:HahnEchoStillsGWM highRes.tif](https://upload.wikimedia.org/wikipedia/commons/thumb/4/45/HahnEchoStillsGWM_highRes.tif/lossy-page1-800px-HahnEchoStillsGWM_highRes.tif.jpg?20110530145639)
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[edit]DescriptionHahnEchoStillsGWM highRes.tif |
English: Still images from animation of a Hahn echo. Examples of the Hahn echo include the spin echo and the photon echo. The red arrows can be thought of as spins. Applying the first pulse rotates the spins by 90 degrees, producing an equal superposition of spin up and spin down. The spins then "spread out" because each is in a slightly different environment. This spreading out looks like decoherence, but it can be refocused by a second pulse which rotates the spins by 180 degrees. Several simplifications are used in this animation: no decoherence is included and each spin experiences perfect pulses during which the environment provides no spreading. Animation made by Gavin W Morley with POV-Ray; some rights reserved. |
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Source | Own work |
Author | Gavin W Morley |
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[edit]I, the copyright holder of this work, hereby publish it under the following license:
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:56, 30 May 2011 | ![]() | 2,000 × 1,000 (22.91 MB) | GavinMorley (talk | contribs) |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Image data location | 25,424 |
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Vertical resolution | 100 dpc |
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Software used | Adobe Photoshop CS4 Windows |
File change date and time | 15:48, 30 May 2011 |
Color space | Uncalibrated |
warning | wrong data type 7 for "RichTIFFIPTC"; tag ignored. |
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