Gravity Wave - Wavelength / Freq

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Discussion Overview

The discussion centers around the measurement of gravitational waves, specifically whether they can be accurately quantified in terms of wavelength and frequency at the quantum scale, particularly in Planck units. Participants explore the implications of gravitational wave detection and its relation to ongoing research.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Colin inquires about the measurement of gravitational waves at the quantum scale, specifically looking for data in Planck units.
  • Zz asserts that gravitational waves have not been detected accurately enough and directs Colin to LISA and LIGO for information.
  • Colin expresses optimism about future detections and speculates on a wavelength range of 4 to 16 Planck lengths.
  • Another participant notes that the detected wavelength will depend on the source of the gravitational waves, mentioning binary black hole mergers as a likely source and providing a frequency range of 295 to 2000 Hz for such events.
  • Betel questions the feasibility of measuring gravitational waves at the Planck length scale, suggesting Colin may be misinformed.
  • Colin acknowledges the misunderstanding regarding Planck lengths and expresses interest in theories about very small gravitational waves.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the feasibility of measuring gravitational waves at the quantum scale, with some expressing skepticism about the current capabilities of detection technologies.

Contextual Notes

There are unresolved assumptions regarding the definitions of wavelengths and frequencies in the context of gravitational waves, particularly at the quantum scale. The discussion also highlights the dependence on the source of gravitational waves for the characteristics of the signals detected.

lowing99
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Hi Folks

Does anyone know if Gravity waves have been measured accurately enough to have a wavelength and frequency at the quantum scale.

I'm looking for any data measured in Plancks.

Bit of a random one, it relates to some research I am doing at the moment.

Thanks

Best

Colin
 
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Not only have gravitational waves NOT been measured "accurately enough", it also has NOT been detected YET!

You need to go to LISA and LIGO webpages, for example, and gather your information. Shouldn't you need that to include in your "research"?

Zz.
 
Thanks for the quick answer Zapper,

I figured as much, they will be detected I'm sure.

I'm expecting a wavelength of 4 - 16 P. I'm just hoping for the confirmation. If it is discovered (hopefully soon) and it is within this range, I'm going to be a very excited bunny :)

Best

Colin
 
The decteced wavelength will strongly depend on the source emitting the gravitational wave. One of the most likely signals to be detected should origin from binary black hole inspiralling onto each other. The signal should have a characteristic "chirp" form towards the end with strongly increasing frequency (decr. wavelength). A likely range should be 295 to 2000Hz for 20 Solar mass black holes. That would correspond to wavelengths of roughly 1000km.
What unit is P supposed to be?
The frequency range on LIGO is 2 to ca. 4000 Hz, so the smallest detectable waves will have wavelengths of 500km.
 
I'm guessing that "P" might be what the OP called "Plancks". If this is the Planck length scale, boy is he/she seriously off track!

Zz.
 
Thanks Betel for the information.

Best

Colin
 
Welcome lowing. It would be nice if you in return answered my question about P.
 
Yes it was Planck lengths, I'm way out it seems :)

I was simply wondering if anybody had theorized or suggested very small gravity waves with a wavelength at a scale smaller than primary particles, it was just a spin off idea from something else I was doing. The references Naty posted (thanks btw) looked interesting, so i'll check that out. I'm going to check out the LISA and LIGO webpages as suggested.

Best

Colin
 

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