Non-dispersive DSR (personal view of Jerzy K-G)

[marcus]

A recent paper of Jerzy K-G has this footnote on page 7, at the conclusion:

"3. Beware! These answers reflect my personal understanding and views, and may not be shared by other experts!"

I have the impression that K-G's view of DSR (that it is non-dispersive and does not predict energy dependence of the speed of light) may be gaining adherents.
I think I remember seeing something about this in a paper co-authored with Freidel. Kowalski-Glikman has been saying this for several years at least. I saw the view in a paper of his from several years back.

Here is what he says in the conclusions of this recent paper, on page 7:


Are there any deviations from Special Relativity predicted by DSR,
which can be observed in experiments in a foreseeable future? The field
theory presented above strongly suggest that there should be no such ob-
servable effects in cosmic rays (the predictions of DSR for both GLAST and
Pierre Auger signals seem to be effectively zero.) But there might be inter-
esting deviations for large quantum systems of energies close to the Planck
one, see [21] for the concrete proposal.[/color]

and the reference is to this paper:
[21] J. Magueijo, “Could quantum gravity be tested with high intensity
lasers?,” Phys. Rev. D 73 (2006) 124020 [arXiv:gr-qc/0603073].

Here is the K-G paper:
http://arxiv.org/abs/hep-th/0612280
Doubly Special Relativity at the age of six
Jerzy Kowalski-Glikman
To appear in the Proceedings of 22nd Max Born Symposium

"The current status of Doubly Special Relativity research program is shortly presented.
I dedicate this paper to my teacher and friend Professor Jerzy Lukierski on occasion of his seventieth birthday."

 

[Almsco]

It is interesting that Jerzy K-G has a footnote on page 7 in his recent paper that cautions readers that his views may not be shared by other experts. He is suggesting that his view of DSR (non-dispersive and does not predict energy dependence of the speed of light) is gaining adherents, and he references a paper co-authored with Freidel as well as his own paper from several years back that supports this view. It will be interesting to see if these views gain even more traction in the future.