Re: Actual data for Sagnac?
- From: Jerry <Cephalobus_alienus@xxxxxxxxxxx>
- Date: Fri, 11 Jul 2008 09:35:58 -0700 (PDT)
On Jul 11, 9:04 am, Tom Roberts <tjroberts...@xxxxxxxxxxxxx> wrote:
Jerry wrote:
The last paper
I am aware of testing the Sagnac effect per se was Ives, 1938.
You are WAY out of date. Quoting from the FAQ:
The Sagnac Experiment
Sagnac constructed a ring interferometer and measured its fringe shifts
as it is rotated. Contrary to some uninformed claims, this experiment
can be fully analyzed using SR, and the results are consistent with SR.
* Sagnac, C.R.A.S 157 (1913), p708, p1410; J. Phys. Radium, 5th
Ser. 4 (1914), pg 177.
The classic papers by Sagnac.
* Post, “Sagnac Effect”, Rev. Mod. Phys., 39 no. 2, pg 475 (1967).
A review article. This is probably the most useful reference on
ring interferometers and the Sagnac effect.
* Anderson et al., Am. J. Phys. 62 no. 11 (1994), pg 975.
A more recent review, and description of a much more accurate
ring interferometer.
* Hasselbach and Nicklaus, Phys. Rev. A 48 no. 1 (1993), pg 143.
The Sagnac effect using electrons.
* Allan et al., Science, 228 (1985), pg 69.
They observed the Sagnac effect using GPS satellite signals
observed simultaneously at multiple locations around the world. See GPS.
* Anandan, “Sagnac Effect in Relativistic and Nonrelativistic
Physics”, Phys. Rev. D24 no. 2 (1981), pg 338. Gron, “Relativistic
description of a Rotating Disk”, AJP 43 no. 10 (1975), pg 869. Rizzi and
Tartaglia, “Speed of Light on Rotating Platforms”, preprint
arxiv:gr-qc/9805089. Mainwaring and Stedman, “Accelerated Clock
Principles in Special Relativity”, Phys. Rev. A47 no. 5 (1993), pg 3611..
Berenda, “The Problem of the Rotating Disk”, Phys. Rev. 62 (1942), pg 280.
Various additional papers on the analysis of rotating systems.
* Ashtekar and Magnon, “The Sagnac Effect in General Relativity”,
J. Math. Phys. 16 no. 2 (1975), pg 341.
A discussion using GR.
* The Canterbury Ring Laser, publications:
http://www.phys.canterbury.ac.nz/research/laser/ring_publications.shtml.
A detailed and varied series of modern measurements using a
highly sensitive ring laser. A review paper is: Stedman, Rep. Prog.
Phys. 60: pg 615–688 (1997),
http://www.phys.canterbury.ac.nz/research/laser/files/ringlaserrpp.pdf.
Tom Roberts
Are these papers TESTING the Sagnac effect, or are these papers
which accept the Sagnac effect as a GIVEN?
The OP was, as I interpret his question, asking for papers which
test whether the Sagnac effect actually exists, and if it exists,
whether the magnitude of the effect is in accordance with
theoretical prediction.
Several of the recent papers that you cite discuss the Sagnac
effect in regard to its relationship to tests of relativity,
mostly as a necessary consideration in data analysis. Several
other papers have as their primary topic the theory and operation
of ring lasers, and the Sagnac effect is accepted as a given.
Which of the papers that you cite discuss the Sagnac effect as
a topic for experimental verification in its own right?
Jerry
.
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