re: http://en.m.wikipedia.org/wiki/Laura_Mersini-Houghton#section_2
Correct, but remember this Tegmark Level 2. However, with regard to the voids and anisotropic flow in our own observable universe inside our own observer-dependent causal diamond I would think Level 1 parallel worlds on our own single inflation bubble would have the strongest effect? Note none of this is Level 3. Levels 1 & 2 are Bohm material hidden variables with a super-quantum potential in Wheeler Superspace where the Wheeler-Dewitt equation holds sway in the string-brane theory mini-superspace modeling.
If the observations suggested below were ever confirmed Lenny Susskind would probably get a Nobel Prize for string theory, holography of horizons and the cosmic landscape. At least no one can now say that string theory has no observable consequences. Of course string theory can still be criticized as having too much excess baggage - too much algorithmic complexity. After all epicycles did explain the motion of planets pretty well. If you put in enough math input you can explain anything. However, the current work is very interesting and formidable although a simpler picture, like the one I have using only battle-tested Einstein GR & orthodox QM, if it could also explain the anomalies would be better. However, I have yet to explain the precision cosmology anomalies using the "simpler" model.
Observing the Multiverse with Cosmic Wakes
Matthew Kleban (NYU), Thomas S. Levi (UBC), Kris Sigurdson (UBC)
(Submitted on 15 Sep 2011)
Current theories of the origin of the Universe, including string theory, predict the existence of a multiverse containing many bubble universes. These bubble universes will generically collide, and collisions with ours produce cosmic wakes that enter our Hubble volume, appear as unusually symmetric disks in the cosmic microwave background (CMB) and disturb large scale structure (LSS). There is preliminary observational evidence consistent with one or more of these disturbances on our sky. However, other sources can produce similar features in the CMB temperature map and so additional signals are needed to verify their extra-universal origin. Here we find, for the first time, the detailed three-dimensional shape and CMB temperature and polarization signals of the cosmic wake of a bubble collision in the early universe consistent with current observations. The predicted polarization pattern has distinctive features that when correlated with the corresponding temperature pattern are a unique and striking signal of a bubble collision. These features represent the first verifiable prediction of the multiverse paradigm and might be detected by current experiments such as Planck and future CMB polarization missions. A detection of a bubble collision would confirm the existence of the Multiverse, provide compelling evidence for the string theory landscape, and sharpen our picture of the Universe and its origins.
On Oct 14, 2012, at 11:24 AM, Gary S Bekkum <garysbekkum@gmail.com> wrote:
http://arxiv.org/abs/1109.3473
Gary S. Bekkum
STARpod.US
STARstream Research
VM (763) 439-0719
PS
Nonlocality as Evidence for a Multiverse Cosmology
Frank J. Tipler
(Submitted on 16 Aug 2010)
I show that observations of quantum nonlocality can be interpreted as purely local phenomena, provided one assumes that the cosmos is a multiverse. Conversely, the observation of quantum nonlocality can be interpreted as observation evidence for a multiverse cosmology, just as observation of the setting of the Sun can be interpreted as evidence for the Earth's rotation.
Subjects: Quantum Physics (quant-ph); General Relativity and Quantum Cosmology (gr-qc)
Cite as: arXiv:1008.2764 [quant-ph]
(or arXiv:1008.2764v1 [quant-ph] for this version)
Thanks to Art Wagner for sending me Hammond's clearly written paper.
"There is yet other evidence of the probity of this
approach reaching back to the 1970s. It was shown
that general relativity with torsion could be formu-
lated as a local gauge theory under the Poincare
group. Now, we know there are two Casimir in-
variants of this group, P^2 and L^2
–the square of the translation operator and
Pauli-Lubanski spin operator.
Although this was formulated with a symmetric
metric tensor, so was the spin theory resulting from
the torsion potential.[7] In that case, the ideas not
only carry over to the non-symmetric case, they pro-
vide an interpretation as well as a raisond’tre for the
non-symmetric metric tensor. In any case, we have
come to think of mass and spin as being associated
with the gravitational ﬁeld, and the above results
show a very natural framework for just that.
In this approachthere is a natural string coupling:
The symmetric part of the metric tensor is associ-
ated with the Nambo-Goto term
http://en.wikipedia.org/wiki/Nambu–Goto_action
and the antisymmetric part with the Kalb-Ramond term
http://en.wikipedia.org/wiki/Kalb–Ramond_field
This gives a natural union between gravity and string theory
The necessity of torsion, from a potential, has already been
demonstrated in two ways. First it was in shown
in [11] the correct law for the conservation of total
angular momentum plus spin can only be achieved
with torsion. This in itself is a strong enough argu-
ment for its presence, but it was also shown that it
is necessary from gauge invariance arguments.
In the ﬁnal analysis then, we have particles with
intrinsic spin giving rise to a ﬁeld. The potential
of this ﬁeld is the antisymmetric part of the met-
ric tensor. This is a new physical interpretation of
the antisymmetric part of the metric tensor entirely
diﬀerent from previous work"
http://xxx.lanl.gov/pdf/1207.5170v1.pdf
Begin forwarded message:
Note that the total energy of the gravity field has this Q problem suggesting gravity as a "More is different" (P.W. Anderson) low-energy emergent field from a spontaneous broken vacuum symmetry at the Alpha Moment of Inflation (zero conformal time & zero comoving distance in Tamara Davis’s Fig 1.1 c) from false to true vacuum in the above picture.
On the other hand gravity is also induced by localizing the universal global gauge (De Sitter - Poincare group) - so how do we merge these two ideas from different levels?
One model is G = O(9) spontaneously breaks to H = O(8) giving 8 Goldstone post-inflation condensates whose quantized vibrations are the massless SU3 QCD gluons via an analytic continuation of non-compact O(9)/O(8) to compact SU3?
This model has 28 Higgs-like massive bosons - not to be confused with the single electro-weak Higgs allegedly now found at LHC from G = U1xSU2 ---> H = U1 where the three massless W bosons of SU2 essentially absorb the three massless Goldstone bosons leaving only the single massive Higgs boson in this simplest of models.
28 + 8 = 36 = 9x8/2 = number of spacetime charges in string theory type O(9) spacelike sub-group of string theory O(1,9) with 6 extra space dimensions.O(9) is for the spacelike slices of O(1,9) used in superstring theory