Hybrid HE11 mode of corrugated waveguides as source of axion

In summary, the HE11 mode of corrugated waveguides would not be a natural source of axion field due to the suppression of the source term, which is proportional to the product of electric and magnetic fields, by a factor of the wavelength over the radius of the waveguide. This suppression may not be significant in some cases, such as in ITER, where the ratio is approximately 1/20. To estimate the axion production in this situation, one could modify equations (6,7) from the original Sikivie paper.
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Ricvil
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Why HE11 mode of corrugated waveguides would not be a natural source of axion field?
 
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Ricvil said:
Why HE11 mode of corrugated waveguides would not be a natural source of axion field?

The source term for the axion is proportional to ##\mathbf{E}\cdot \mathbf{B}##. This quantity is suppressed by a factor of ##\lambda/a##, where ##\lambda## is the wavelength and ##a## is the radius of the waveguide. Looking around I found a paper suggesting that some of the waveguides involved in ITER have ##\lambda/a \sim 1/20##, so perhaps this isn't a huge suppression.

The original Sikivie paper is available at http://ccdb5fs.kek.jp/cgi-bin/img/allpdf?198309239 . Perhaps you can modify his eqs (6,7) in order to estimate the axion production in this situation.
 
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1. What is a "Hybrid HE11 mode" in the context of corrugated waveguides?

The Hybrid HE11 mode is a type of electromagnetic wave that can propagate through a corrugated waveguide. It is characterized by a combination of electric and magnetic field components that oscillate in both the transverse and longitudinal directions.

2. How is the Hybrid HE11 mode used as a source of axion?

The Hybrid HE11 mode can be used to excite axion-like particles, which are hypothetical particles that are predicted by some theories of physics. These particles can be produced by the interaction of the electromagnetic field of the Hybrid HE11 mode with the magnetic field of the corrugated waveguide.

3. What are the advantages of using corrugated waveguides as a source of axion compared to other methods?

Corrugated waveguides offer a number of advantages for producing axions. They can generate a strong and localized magnetic field, which is necessary for the production of axions. They also have a well-defined and controllable geometry, allowing for precise tuning of the axion production process.

4. Can the Hybrid HE11 mode of corrugated waveguides be used for other applications besides axion production?

Yes, the Hybrid HE11 mode of corrugated waveguides has potential applications in a variety of fields, including particle accelerators, high-energy physics research, and telecommunications. Its unique properties make it a versatile tool for manipulating electromagnetic waves.

5. Are there any challenges or limitations to using the Hybrid HE11 mode of corrugated waveguides as a source of axion?

One of the main challenges is that the production of axions through this method is highly dependent on the properties of the corrugated waveguide, such as its geometry, material, and surface roughness. These factors can affect the efficiency and accuracy of axion production. Additionally, the production of axions in this way is still a relatively new and developing field, so there is still much to be learned and improved upon.

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