Making mirrors parallel in a vacuum using charge

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Discussion Overview

The discussion revolves around the feasibility of using charged mirrors in a vacuum to achieve parallel alignment, with a focus on the implications for observing the Casimir force and generating specific wavelengths of photons. The conversation touches on the theoretical and practical challenges of maintaining mirror parallelism while applying voltage.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant proposes that applying voltage to two identical front surface mirrors in a vacuum could push them apart while maintaining parallelism, potentially allowing for the observation of the Casimir force.
  • Another participant raises concerns about the complexity of the setup, questioning how to isolate the forces at play and accurately measure the Casimir force amidst other forces influenced by the applied voltage.
  • A third participant shares a link to a gold leaf electroscope, possibly as a resource for understanding charge behavior.
  • A later reply clarifies that the primary goal is not to measure the Casimir force but to achieve parallel mirrors for generating specific wavelengths of photons, indicating a shift in focus from measurement to application.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility and complexity of the proposed setup, with no consensus reached on the effectiveness of using charged mirrors to achieve the desired outcomes.

Contextual Notes

Participants note the challenges in separating the effects of the applied voltage from the Casimir force, highlighting the dependence on the specific configuration and the difficulty in achieving precise adjustments at the nanometer scale.

Who May Find This Useful

This discussion may be of interest to those exploring experimental setups in quantum physics, particularly in relation to the Casimir effect and photon generation techniques.

BernieM
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Two identical front surface mirrors are hung in a vacuum chamber with a high vacuum with a bit of bias of their mass wanting to lean into each other so they don't separate on their own. The metal surface is connected to a variable high voltage source. Both mirrors are connected to the same source. When voltage is applied will the two mirrors be pushed apart and remain relatively parallel to each other (reasonably close enough that casimir force can be observed?) And what possible 'fine adjustment' of their distance might reasonably be expected? (Would their separation distance be fine enough that one could separate them by say 1nm/volt, for example, or would it be difficult to make fine adjustments on the nm scales.)
 
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That seems a rather elaborate setup, of first setting up a contracting force (the angle of the mirrors), then creating a way to overcome that force (through charge), only to then try to measure an entirely different force.

But presuming your setup now, I think one major difficulty will be, how do you separate the forces related to your setup, from the Casimir force? In the end you will need to be able to say "I can entirely account for all remaining forces, this remaining force must be the Casimir force". However, given how the separation of the mirrors will already be a function of the voltage applied, and not necessarily an easy function, it will be hard to have any confidence.
 
Thanks for the responses. Actually my concern isn't to measure the casimir force but to use the apparatus in creation of a particular wavelength of photons. The problem with casimir devices is the parallelity of the mirrors for it to work properly. Thanks Tom for the link to the electroscope, I had totally overlooked it.
 
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