Next revision | Previous revision | ||
advanced_notions:topological_defects:vortices [2017/12/20 11:15] jakobadmin created |
advanced_notions:topological_defects:vortices [2017/12/20 11:17] (current) jakobadmin [History] |
||
---|---|---|---|
Line 5: | Line 5: | ||
<tabbox Layman> | <tabbox Layman> | ||
- | <note tip> | + | <blockquote> |
- | Explanations in this section should contain no formulas, but instead colloquial things like you would hear them during a coffee break or at a cocktail party. | + | An example of a vortex is universally encountered by people taking |
- | </note> | + | baths or washing dishes. As the water flows down the drain, it |
+ | circulates. We cannot interpolate the circulating velocity field | ||
+ | all the way to the center of the vortex since it would | ||
+ | have to become multi-valued. Instead the fluid density in the central | ||
+ | region of the vortex vanishes. | ||
+ | |||
+ | <cite>https://arxiv.org/pdf/hep-ph/9710292.pdf</cite> | ||
+ | </blockquote> | ||
| | ||
<tabbox Student> | <tabbox Student> | ||
Line 35: | Line 42: | ||
energy at this point since $\phi =0$ is not on the vacuum manifold. | energy at this point since $\phi =0$ is not on the vacuum manifold. | ||
The location of this point may be defined as the location of a vortex. | The location of this point may be defined as the location of a vortex. | ||
- | **(An example of a vortex is universally encountered by people taking | + | |
- | baths or washing dishes. As the water flows down the drain, it | + | |
- | circulates. We cannot interpolate the circulating velocity field | + | |
- | all the way to the center of the vortex since it would | + | |
- | have to become multi-valued. Instead the fluid density in the central | + | |
- | region of the vortex vanishes.)** | + | |
<cite>https://arxiv.org/pdf/hep-ph/9710292.pdf</cite> | <cite>https://arxiv.org/pdf/hep-ph/9710292.pdf</cite> | ||
Line 67: | Line 69: | ||
| | ||
<tabbox History> | <tabbox History> | ||
+ | Lord Kelvin [[http://www.pbs.org/wgbh/nova/blogs/physics/2011/12/beautiful-losers-kelvins-vortex-atoms/|famously tried]] to explain the different atoms as vortices. | ||
</tabbox> | </tabbox> | ||