File:SpinEcho GWM stills.jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this preview: 800 × 404 pixels. Other resolutions: 320 × 162 pixels | 640 × 323 pixels | 1,024 × 517 pixels | 2,000 × 1,010 pixels.
Original file (2,000 × 1,010 pixels, file size: 435 KB, MIME type: image/jpeg)
File information
Structured data
Captions
Summary[edit]
DescriptionSpinEcho GWM stills.jpg |
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. |
Date | |
Source | Own work |
Author | Gavin W Morley |
Licensing[edit]
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 14:17, 13 June 2011 | 2,000 × 1,010 (435 KB) | GavinMorley (talk | contribs) | less bright colours, pulse sequence head-on | |
17:13, 2 June 2011 | 2,000 × 1,010 (463 KB) | GavinMorley (talk | contribs) |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on cs.wikipedia.org
- Usage on en.wikipedia.org
- Usage on ja.wikipedia.org
- Usage on ru.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Orientation | Normal |
---|---|
Horizontal resolution | 100 dpc |
Vertical resolution | 100 dpc |
Software used | Adobe Photoshop CS4 Windows |
File change date and time | 15:16, 13 June 2011 |
Color space | sRGB |