Subject: ASGRG Newsletter #10
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AUSTRALASIAN SOCIETY FOR GENERAL RELATIVITY AND GRAVITATION
Electronic Newsletter -- #10, Spring 2002
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Items for this newsletter should be emailed to the editor:
asgrg *AT* hotmail *DOT* com
The deadline for the next issue is 31 March, 2003.
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CONTENTS:
* REPORT ON 2002 AIP CONGRESS, Sydney, 8-11 July, 2002
* ICIAM 2003, Sydney, 7-11 July, 2003
* MATT VISSER RETURNS TO NEW ZEALAND
* MEMBERSHIP DETAILS ONLINE at
http://www.physics.adelaide.edu.au/ASGRG/members.html
* SUBSCRIPTIONS
* FORTHCOMING MEETINGS
* MEMBERS' ABSTRACTS at gr-qc, May 2002 - November 2002
* BOOK NOTICE: "THE MATHEMATICAL THEORY OF COSMIC STRINGS"
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REPORT ON 2002 CONGRESS OF THE AUSTRALIAN INSTITUTE OF PHYSICS
The 15th Biennial Congress of the Australian Institute of Physics
was held at the Sydney Convention and Exhibition Centre, Darling
Harbour, Sydney on 8-11 July 2002. The ASGRG Interest Group was
allocated a total of four sessions, two on general relativity
theory and two on gravitational wave detection. In addition, Prof
Barry Barish from CalTech, Director of LIGO, gave a plenary talk
on the status and prospects for LIGO.
The two theory sessions were held on the afternoon of Monday 8th
July, and included talks on isotropic singularities, the abstract
boundary construction, geodesics in the Reissner-Nordstrom metric,
gravitational collapse of higher-dimensional dust, and self-similar
evaporation of cosmic string loops.
The sessions on gravitational wave detection, held on Thursday
afternoon (11th July) featured talks on LIGO from Barry Barish,
ACIGA from David McClelland, and AIGO from Sue Scott, plus a
host of more technical presentations on inteferometry and
signal processing.
Overall, AIP 2002 was a very enjoyable experience. The weather
in Sydney was superb, and the food was terrific.
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ICIAM 2003, Sydney, 7-11 July, 2003
John Steele is organising a relativity mini-symposium as part of the 6th
Australia-New Zealand Mathematics Convention being held in conjunction
with ICIAM 2003 in Sydney on 7-11 July 2003. The mini-symposium will
consist of 4 talks of roughly 25-30 minutes each. The formal closing date
for abstracts is 31st January 2003, but John would be very grateful if
anyone interested in giving a talk could send him a working title and
draft abstract before Christmas. His email address is:
j.steele@unsw.edu.au
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MATT VISSER RETURNS TO NEW ZEALAND
After a long stint at the University of Washington in Saint Louis,
Matt Visser has returned to New Zealand to take up a position as
Reader/Associate Professor in the Mathematics Department at Victoria
University in Wellington. His new email address is:
matt.visser@mcs.vuw.ac.nz
and his new postal address is:
School of Mathematical Sciences
Victoria University
PO Box 600
Wellington
New Zealand
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MEMBERSHIP DETAILS ONLINE:
Due to requests from members, David Wiltshire has written some HTML
scripts which generate membership details online from our records. If you
click on
http://www.physics.adelaide.edu.au/ASGRG/members.html
you will find a members' list. Clicking on individual members gives their
current contact details. By following a further link private details of
the subscription status of any member will be sent to their registered
email.
This feature should enable us to update our records more frequently in
response to members' input, and to allow members to keep track of their
subscriptions.
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SUBSCRIPTIONS:
The membership script programs are intended to be run automatically once
a year, at the end of July, to give members other than life members
details of their current subscription status.
The new version of the subscription form, at
http://www2.phys.canterbury.ac.nz/ASGRG/subsform.html
has been simplified so that it does not need to be updated each year.
Given that our annual fee is modest, members are encouraged to pay for
multiple years, and to fill in the years they are paying for. E.g., when
the July 2003 - June 2004 subscriptions are requested, if you wish to
pay for July 2004 - June 2005 at the same time, it may simplify matters.
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FORTHCOMING MEETINGS
December 9-13, 2002: XXIst Texas Symposium on Relativistic
Astrophysics
Florence, Italy
http://www.arcetri.astro.it/%7Etexaflor/
December 11-14, 2002: 22nd Meeting of the Indian Association for
General Relativity and Gravitation, (IAGRG 2002)
Pune, India
http://www.iucaa.ernet.in/%7Eiagrg02/
January 6 - May 14, 2003: Caltech Visitors Program in the Numerical
Simulation of Gravitational Wave Sources: Initial Data Problem
Caltech, USA
http://www.tapir.caltech.edu/GWSourceSimulation/
February 2-8, 2003: Gravitational Wave Advanced Detector Workshop
Aspen Centre for Physics, Aspen, USA
http://andy.bu.edu/aspen/
February 17-19, 2003: Black-Hole Astronomy
Yukawa Institute for Theoretical Physics, Kyoto, Japan
http://amalthea.phys.s.u-tokyo.ac.jp/tokuteiBH/
March 24-28, 2003: Mathematical Theory of Hyperbolic Systems of
Conservation Laws
Isaac Newton Institute, Cambridge, UK
http://www.newton.cam.ac.uk/programmes/NPA/npaw01.html
March 29-30, 2003: 6th East Coast Gravity Meeting (ECGM6)
University of Maryland, USA
March 31 - April 4, 2003: Multi-Phase Fluid Flows and
Multi-Dimensional Hyperbolic Problems
Isaac Newton Institute, Cambridge, UK
http://www.newton.cam.ac.uk/programmes/NPA/npaw01.html
May 12 - July 11, 2003: Gravitational Interaction of Compact Objects
Kavli Institute for Theoretical Physics, UCSB, USA
http://www.itp.ucsb.edu/activities/grav03/
May 28-31, 2003: 10th Conference on General Relativity and
Astrophysics
University of Guelph, Ontario, Canada
http://www.physics.uoguelph.ca/poisson/ccgrra/
June 23-27, 2003: Hyperbolic Models in Astrophysics and Cosmology
Isaac Newton Institute, Cambridge, UK
http://www.newton.cam.ac.uk/programmes/NPA/npaw01.html
June 26 - July 3, 2003: Recent Problems in Theoretical and Mathematical
Physics (15th Petrov Summer School-Seminar)
Tatarstan, Russia
http://www.kcn.ru/petrov_school
July 6-11, 2003: 5th Edoardo Amaldi Conference on Gravitational
Waves
Pisa Italy
July 7-11, 2003: 5th International Congress on Industrial and
Applied Mathematics (ICIAM 2003)
Sydney, Australia
http://www.iciam.org/iciamHome/iciamHome_tf.html
July 20-26, 2003: 10th Marcel Grossmann Meeting on General Relativity
Rio de Janeiro, Brazil
http://www.cbpf.br/mg10/WelcomeNew.html
September 1-10, 2003: Problems of Theoretical and Observational Cosmology
(3rd Ulyanovsk International School -Seminar)
Ulyanovsk, Russia
http://www.rgs.da.ru/
October 17-18, 2003: 13th Midwest Relativity Meeting
University of Windsor, Ontario, Canada
http://venus.uwindsor.ca/courses/physics/mwr13/index.html
Dec 2003/Jan 2004: 4th Conference of the ASGRG (ACGRG4)
Monash University, Melbourne, Australia
July 18-25, 2004: 17th International Conference of the ISGRG (GR 17)
Dublin, Ireland
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MEMBERS' ABSTRACTS at gr-qc, May 2002 - November 2002
We list here all new abstracts that we are aware of that have been
submitted by our members to gr-qc, or which are cross-linked at gr-qc.
(We have not searched for abstracts on other Los Alamos archives which
are not crosslinked to gr-qc.) If you do not send your papers to gr-qc but
would like to have them noted in the newsletters, please send them to the
Editor.
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Paper: gr-qc/0209098
From: Mike Ashley
Date: Thu, 26 Sep 2002 01:44:55 GMT (101kb)
The stability of abstract boundary essential singularities
Authors: Michael J. S. L. Ashley
Journal-ref: Gen.Rel.Grav. 34 (2002) 1625-1635
The abstract boundary has, in recent years, proved a general and flexible
way to define the singularities of space-time. In this approach an
essential singularity is a non-regular boundary point of an embedding
which is accessible by a chosen family of curves within finite parameter
distance. Ashley and Scott proved the first theorem relating essential
singularities in strongly causal space-times to causal geodesic
incompleteness. Linking this with the work of Beem on the $C^{r}$-
stability of geodesic incompleteness allows proof of the stability of
these singularities. Here I present this result stating the conditions
under which essential singularities are $C^{1}$-stable against
perturbations of the metric.
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Paper: gr-qc/0205010
From: Brandon CARTER
Date: Thu, 2 May 2002 10:28:53 GMT (7kb)
Energy dominance and the Hawking Ellis vacuum conservation theorem
Authors: Brandon Carter
Comments: 7 pages Latex, contributed to Stephen Hawking's 60th birthday
workshop on the Future of Theoretical Physics and Cosmology, Cambridge,
January 2002
At a time when uninhibited speculation about negative tension -- and by
implication negative mass density -- world branes has become commonplace,
it seems worthwhile to call attention to the risk involved in sacrificing
traditional energy positivity postulates such as are required for the
classical vacuum stability theorem of Hawking and Ellis. As well as
recapitulating the technical content of this reassuring (when applicable)
theorem, the present article provides a new, rather more economical proof.
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Paper: gr-qc/0206017
From: Neil J. Cornish
Date (v1): Thu, 6 Jun 2002 19:00:44 GMT (205kb)
Date (revised v2): Thu, 13 Jun 2002 23:14:57 GMT (257kb)
LISA data analysis I: Doppler demodulation
Authors: Neil Cornish, Shane Larson
Comments: 5 pages, 7 figures. References and new comments added
The orbital motion of the Laser Interferometer Space Antenna (LISA)
producesamplitude, phase and frequency modulation of a gravitational
wave signal. The modulations have the effect of spreading a monochromatic
gravitational wave signal across a range of frequencies. The modulations
encode useful information about the source location and orientation, but
they also have the deleterious affect of spreading a signal across a wide
bandwidth, thereby reducing the strength of the signal relative to the
instrument noise. We describe a simple method for removing the dominant,
Doppler, component of the signal modulation. The demodulation reassembles
the power from a monochromatic source into a narrow spike, and provides a
quick way to determine the sky locations and frequencies of the brightest
gravitational wave sources.
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Paper: gr-qc/0207016
From: Janna Levin
Date: Tue, 2 Jul 2002 12:34:57 GMT (291kb)
Gravitational Waves from Spinning Compact Binaries
Authors: Neil J. Cornish, Janna Levin
Comments: 5 pages
Binary systems of rapidly spinning compact objects, such as black holes or
neutron stars, are prime targets for gravitational wave astronomers. The
dynamics of these systems can be very complicated due to spin-orbit and
spin-spin couplings. Contradictory results have been presented as to the
nature of the dynamics. Here we confirm that the dynamics - as described
by the second post-Newtonian approximation to general relativity - is
chaotic, despite claims to the contrary. When dissipation due to higher
order radiation reaction terms are included, the chaos is dampened.
However, the inspiral-to-plunge transition that occurs toward the end of
the orbital evolution does retain an imprint of the chaotic behaviour.
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Paper: gr-qc/0207020
From: Janna Levin
Date (v1): Wed, 3 Jul 2002 17:08:27 GMT (11kb)
Date (revised v2): Thu, 17 Oct 2002 23:57:43 GMT (11kb)
Comment on "Ruling out chaos in compact binary systems"
Authors: Neil J. Cornish, Janna Levin
Comments: 1 page. Published Version
Journal-ref: Phys.Rev.Lett. 89 (2002) 179001
In a recent Letter, Schnittman and Rasio argue that they have ruled out
chaos in compact binary systems since they find no positive Lyapunov
exponents. In stark constrast, we find that the chaos discovered in the
original paper under discussion, J.Levin, PRL, 84 3515 (2000), is confirmed
by the presence of positive Lyapunov exponents.
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Paper: gr-qc/0209011
From: Neil J. Cornish
Date (v1): Tue, 3 Sep 2002 20:04:07 GMT (10kb)
Date (revised v2): Thu, 5 Sep 2002 23:55:02 GMT (10kb)
Date (revised v3): Tue, 8 Oct 2002 21:53:24 GMT (10kb)
The LISA Response Function
Authors: Neil J. Cornish, Louis J. Rubbo
Comments: 6 pages, no figures. Minor corrections
The orbital motion of the Laser Interferometer Space Antenna (LISA)
introduces modulations into the observed gravitational wave signal. These
modulations can be used to determine the location and orientation of a
gravitational wave source. The complete LISA response to an arbitary
gravitational wave is derived using a coordinate free approach in the
transverse-traceless gauge. The general response function reduces to that
found by Cutler (PRD 57, 7089 1998) for low frequency, monochromatic plane
waves. Estimates of the noise in the detector are found to be complicated
by the time variation of the interferometer arm lengths.
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Paper: gr-qc/0207075
From: Michael Edmund Tobar
Date: Fri, 19 Jul 2002 12:33:52 GMT (376kb)
Properties of a monolithic sapphire parametric transducer: prospects of
measuring the standard quantum limit
Authors: C. R. Locke, M. E. Tobar, E. N. Ivanov
Comments: One PDF
Journal-ref: Class.Quant.Grav. 19 (2002) 1877-1888
To measure the standard quantum limit (SQL) a high quality transducer must
be coupled to a high quality mechanical system. Due to its monolithic
nature, the monolithic sapphire transducer (MST) has high quality factors
for both types of resonances. Single loop suspension is shown to yield a
mechanical quality factor of 6.10^8 at 4 K. From standard analysis we show
the MST has the potential to measure noise fluctuations of the mechanical
oscillator at the SQL. Also, we point out a new way to determine if the
transducer back action is quantum limited. We show that if the fluctuations
are at the quantum limit, then the amplitude of the oscillation will be
amplified by the ratio of the ringdown time to the measurement time, which
is an inherently easier measurement.
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Paper: quant-ph/0205043
From: Ben C. Buchler
Date: Thu, 9 May 2002 05:57:33 GMT (490kb)
Experimental demonstration of a squeezing enhanced power recycled Michelson
interferometer for gravitational wave detection
Authors: Kirk McKenzie, Ben C. Buchler, Daniel A. Shaddock, Ping Koy Lam,
David E. McClelland
Comments: 4 pages 4 figures
Subj-class: Quantum Physics; Optics
Journal-ref: Phys.Rev.Lett. 88 (2002) 231102
Interferometric gravitational wave detectors are expected to be limited by
shot noise at some frequencies. We experimentally demonstrate that a power
recycled Michelson with squeezed light injected into the dark port can
overcome this limit. An improvement in the signal-to-noise ratio of 2.3dB
is measured and locked stably for long periods of time. The configuration,
control and signal readout of our experiment are compatible with current
gravitational wave detector designs. We consider the application of our
system to long baseline interferometer designs such as LIGO.
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Paper: gr-qc/0205066
From: visser@tui.wustl.edu (Matt Visser)
Date: Thu, 16 May 2002 03:05:41 GMT (11kb)
Twilight for the energy conditions?
Authors: Carlos Barcelo (Portsmouth, UK),
Matt Visser (Washington University in Saint Louis)
Comments: Honourable mention in the 2002 Gravity Research Foundation essay
contest. 12 pages. Plain LaTeX 2e
The tension, if not outright inconsistency, between quantum physics and
general relativity is one of the great problems facing physics at the turn
of the millennium. Most often, the problems arising in merging Einstein
gravity and quantum physics are viewed as Planck scale issues (10^{19} GeV,
10^{-34} m, 10^{-45} s), and so safely beyond the reach of experiment.
However, over the last few years it has become increasingly obvious that
the difficulties are more widespread: There are already serious problems of
deep and fundamental principle at the semi-classical level, and worse,
certain classical systems (inspired by quantum physics, but in no sense
quantum themselves) exhibit seriously pathological behaviour. One
manifestation of these pathologies is in the so-called ``energy
conditions'' of general relativity. Patching things up in the gravity
sector opens gaping holes elsewhere; and some ``fixes'' are more radical
than the problems they are supposed to cure.
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Paper: gr-qc/0205067
From: Simon Judes
Date (v1): Thu, 16 May 2002 09:52:04 GMT (6kb)
Date (revised v2): Fri, 7 Jun 2002 08:06:37 GMT (8kb)
Conservation Laws in Doubly Special Relativity
Authors: Simon Judes, Matt Visser
Comments: Extensive revisions: merged with gr-qc/0205093, new author added,
references added, discussion amplified. 4 pages, revtex4
Motivated by various theoretical arguments that the Planck energy
(Ep - 10^19 GeV) - should herald departures from Lorentz invariance, and
the possibility of testing these expectations in the not too distant
future, two so-called "Doubly Special Relativity" theories have been
suggested -- the first by Amelino-Camelia (DSR1) and the second by
Smolin and Magueijo (DSR2). These theories contain two fundamental
scales -- the speed of light and an energy usually taken to be Ep.
The symmetry group is still the Lorentz group, but in both cases acting
nonlinearly on the energy-momentum sector. Accordingly, since energy and
momentum are no longer additive quantities, finding their values for
composite systems (and hence finding the correct conservation laws) is a
nontrivial matter. Ultimately it is these possible deviations from simple
linearly realized relativistic kinematics that provide the most promising
observational signal for empirically testing these models. Various
investigations have narrowed the conservation laws down to two
possibilities per DSR theory. We derive unique exact results for the
energy-momentum of composite systems in both DSR1 and DSR2, and indicate
the general strategy for arbitrary nonlinear realizations of the Lorentz
group.
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Paper: cond-mat/0205139
From: Uwe R. Fischer
Date: Wed, 8 May 2002 00:09:30 GMT (45kb)
On the space-time curvature experienced by quasiparticle excitations in the
Painleve-Gullstrand effective geometry
Authors: Uwe R. Fischer, Matt Visser
Comments: 9 RevTex4 pages, 1 figure
We consider quasiparticle propagation in constant-speed-of-sound
(iso-tachic) and almost incompressible (iso-pycnal) hydrodynamic flows,
using the technical machinery of general relativity to investigate the
``effective space-time geometry'' that is probed by the quasiparticles.
This effective geometry, described for the quasiparticles of condensed
matter systems by the Painleve-Gullstrand metric, generally exhibits
curvature (in the sense of Riemann), and many features of quasiparticle
propagation can be re-phrased in terms of null geodesics, Killing vectors,
and Jacobi fields. As particular examples of hydrodynamic flow we consider
shear flow, a constant-circulation vortex, flow past an impenetrable
cylinder, and rigid rotation.
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Paper: gr-qc/0211001
From: Matt Visser
Date: Thu, 31 Oct 2002 23:18:35 GMT (35kb)
Power laws, scale invariance, and generalized Frobenius series:
Applications to Newtonian and TOV stars near criticality
Authors: Nicolas Yunes (Washington University in Saint Louis),
Matt Visser (Victoria University of Wellington)
Comments: 35 pages; IJMPA style file
We present a self-contained formalism for analyzing scale invariant
differential equations. We first cast the scale invariant model into its
equidimensional and autonomous forms, find its fixed points, and then
obtain power-law background solutions. After linearizing about these
fixed points, we find a second linearized solution, which provides a
distinct collection of power laws characterizing the deviations from the
fixed point. We prove that generically there will be a region surrounding
the fixed point in which the complete general solution can be represented
as a generalized Frobenius-like power series with exponents that are
integer multiples of the exponents arising in the linearized problem.
This Frobenius-like series can be viewed as a variant of Liapunov's
expansion theorem. As specific examples we apply these ideas to Newtonian
and relativistic isothermal stars and demonstrate (both numerically and
analytically) that the solution exhibits oscillatory power-law behaviour
as the star approaches the point of collapse. These series solutions
extend classical results. (Lane, Emden, and Chandrasekhar in the Newtonian
case; Harrison, Thorne, Wakano, and Wheeler in the relativistic case.) We
also indicate how to extend these ideas to situations where fixed points
may not exist -- either due to ``monotone'' flow or due to the presence of
limit cycles. Monotone flow generically leads to logarithmic deviations
from scaling, while limit cycles generally lead to discrete self-similar
solutions.
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Paper: gr-qc/0211029
From: Uwe R. Fischer
Date (v1): Fri, 8 Nov 2002 14:17:53 GMT (30kb)
Date (revised v2): Fri, 22 Nov 2002 12:20:57 GMT (31kb)
Warped space-time for phonons moving in a perfect nonrelativistic fluid
Authors: Uwe R. Fischer, Matt Visser
Comments: 7 pages, 1 figure. Added clarifying comments about the interplay
between compressibility and large Mach numbers; no significant changes in
physics conclusions
We construct a kinematical analogue of superluminal travel in the
``warped'' space-times curved by gravitation, in the form of ``super-
phononic'' travel in the effective space-times of perfect nonrelativistic
fluids. These warp-field space-times are most easily generated by
considering a solid object that is placed as an obstruction in an otherwise
uniform flow. No violation of any condition on the positivity of energy is
necessary, because the effective curved space-times for the phonons are
ruled by the Euler and continuity equations, and not by the Einstein field
equations.
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Paper: gr-qc/0205079
From: Steven Detweiler
Date: Mon, 20 May 2002 19:50:02 GMT (39kb)
Self-force of a scalar field for circular orbits about a Schwarzschild
black hole
Authors: Steven Detweiler, Eirini Messaritaki, Bernard F. Whiting
Comments: RevTex, 31 pages, 1 figure
The self force is computed for a scalar particle in circular (geodesic)
orbit about a Schwarzschild black hole. We use a particular Green's
function decomposition, which can be exactly specified; however, in a
practical computation it can only be given to some finite level of
approximation. A special set of coordinates is chosen which is locally
inertial in the neighborhood of the orbit and allows direct control over
the level of approximation being used in the Green's function
decomposition, especially in relation to its singular behavior. A mode
sum expansion is used to regularize behavior near the singularity. In
conjunction with specific properties which we demonstrate for the mode
sum representation and with control we have over the level of
approximation, knowledge of the Green's function decomposition is used
to improve dramatically the rate of numerical convergence obtained in
the computation of the finite self force.Comparison is made between our
numerical analysis and that used in previous calculations, which have
required a much higher range in mode summation.
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Paper: gr-qc/0205030
From: Zhang Chengmin
Date: Wed, 8 May 2002 05:26:34 GMT (1kb)
ADDENDUM on the mass neutrino oscillation in a gravitational field
Authors: J. G. Pereira, C. M. Zhang
Comments: 2 pages
Journal-ref: Gen.Rel.Grav. 33 (2001) 2801-2802
In the article {\it Gen. Rel. Grav.} {\bf 32}, 1633 (2000), by J. G.
Pereira and C. M. Zhang, the special relativity energy-momentum tensor
was used to discuss the neutrino phase-splitting in a weak gravitational
field. However, it would be more appropriate to use the general relativity
energy-momentum tensor. When we do that, as we are going to see, some
results change, but the basic conclusion remains the same.
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Paper: physics/0205070
Michelson-Morley Experiments Revisited and the Cosmic Background
Radiation Preferred Frame
Authors: Reginald T. Cahill, Kirsty Kitto
We report a simple re-analysis of the old results (1887) from the
Michelson-Morley interferometer experiment that was designed to detect
absolute motion. We build upon a recent (1998) re-analysis of the original
data byMunera, which revealed a small but significant effect after allowing
for several systematic errors in the original analysis. The further
re-analysis here reveals that a genuine effect of absolute motion is
expected, in what is essentially a quantum interference experiment, but
only if the photons travel in the interferometer at speeds V< c. This is
the case if the interferometer operates in a dielectric, such as air, as
was the case, incidently, of the Michelson-Morley experiment. The
re-analysis here of the Michelson-Morley experimental data, correcting for
the refractive index effect of the air, reveals an absolute speed of the
Earth of v=359+/-54 km/s, which is in excellent agreement with the speed
of v=365+/-18 km/s determined from the dipole fit, in 1991, to the NASA
COBE satellite Cosmic Background Radiation (CBR) observations. Other
experiments where the interferometers operated in air (Miller 1925,1933)
or helium (Illingworth 1927) give similar results when re-analysed. These
experimental results refute Einstein's assertion that absolute motion
through space has no meaning.
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Paper: physics/0209013
Absolute Motion and Quantum Gravity
Authors: Reginald T. Cahill
A new information-theoretic modelling of reality has given rise to a
quantum-foam description of space, relative to which absolute motion is
meaningful. In a previous paper (Cahill and Kitto) it was shown that in
this new physics Michelson interferometers show absolute motion effects
when operated in dielectric mode, as indeed such experiments had indicated,
and analysis of the experimental data showed that the measured speeds were
all consistent with the Cosmic Microwave Background (CMB) dipole-fit speed
of 369km/s. Here the new physics is applied to the Michelson-Morley 1887
interferometer rotation curve data to demonstrate that the interferometer
data is in excellent agreement with the CMB direction (RA, Dec)=
(11.20h,-7.22deg) as well. This data also reveals a velocity component
caused by the in-flow of the quantum foam past the Earth towards the Sun
at 40+/-15km/s, while analysis of the Miller interferometer data of 1933
gives 49km/s, compared to the theoretical value of 42km/s. This observed
in-flow is a signature of quantum gravity effects in the new physics
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BOOK NOTICE: "THE MATHEMATICAL THEORY OF COSMIC STRINGS"
The Institute of Physics has recently published a book by Malcolm
Anderson entitled "The Mathematical Theory of Cosmic Strings: Cosmic
strings in the wire approximation". 380 pages long, it offers a detailed
survey of the current understanding of the dynamics and gravitational
properties of zero-thickness cosmic strings.
For more details, see:
http://bookmarkphysics.iop.org/bookpge.htm?ID=209zzTC6W9BbmM-mJPh2jv_g&book=222h
or
http://www.amazon.co.uk/exec/obidos/ASIN/0750301600/202-6438902-5129418
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