From: sarfatti@well.sf.ca.us (Jack Sarfatti)
Subject: QUANTUM GRAVITY 3
Organization: Whole Earth 'Lectronic Link
Date: Wed, 7 Oct 1992 03:44:28 GMT


from THE NEW SPACETIME AND BEYOND
H.D.Zeh in The Direction of Time (Springer-Verlag 1992) "...quantum
correlations [of Rindler particles] ... emphasiszes the nonlocality of a
relativistic Minkowski vacuum... the physical temperature is
acceleration/2pi ... the discounted [nonlocal]quantum correlations with the
other [far away space-like separated] half-space lead to the pseudo
ensemble of states reprsenting a heat bath [i.e., the Hawking radiation and
the Unruh temperature of an accelerating non-inertial particle detector are
caused by faster than light connections between space-like separated
virtual Rindler particles in the vacuum - JS] ..the measurement time dt is
at least (accelerationxRindler frequencey)^-1 "in ordewr to mimic the
presence of a horizon" p.126 "The important global difference between an
accelerated observer in flat spacetime and one who is at rest at some
[fixed] distance from the black hole (although both are equivalently non-
inertial) is the fact .. that in the first case the total future light cone
will asymptotically hit the horizon, while in the second case only a
certain part of it will (depending on the distance from the horizon).
Similarly, only a smaller part of the second observer's (past) celestial
sphere lies in the vicinity of the horizon from which the Hawking radiation
originates. This essentially modifies the Sommerfeld condition which
determines the 'real' universal quantum state ... and therefore the
probabilities of excitation of a counter. Only in the immediate vicinity of
the horizon .. can the freely falling observer be equivalent to the
inertial observer in flat spacetime, and therefore notice no radiation at
all. While the Unruh radiation [detected by accelerating detector in flat
spacetime] is isotropic anf T [time reversal] symmetric, the Hawking
radiation [from surface of black hole in highly curved spacetime] specifies
a direction in space (towards the black hole) as well as in time by its
non-vanishing enegy flux." p.126 At the horizon or surface of the black
hole the Unruh radiation of the freely falling observer destructively
interfers with the Hawking radiation. p.126

"although the concept of the vacuum is observer-dependent, the global
quantum state can be considered as 'real' (observer-independent)."
According to this criterion of reality space by itself, time by itself,
energy by itself, momentum by itself, electric field by itself, magnetic
field by itself are not 'real' since they depend upon the observer's motion
relative to sources of the fields. What is 'real' is the set of compatible
invariants of the group (or semigroup or category-functor beyond group?) of
frame transformations. Quantum mechanics includes frames beyond the
spacetime metric in the fiber space in which a frame transform is a cahnge
in what Bohr called "the total experimental arrangement" - the quantum
frame transformations are nonlocal. Pontius Pilate asked "What is truth?" a
precognition in mystical Gnosticism of the quantum mechanics "What is
real?" - JS.  "a real Rindler vacuum could be produced by a uniformly
accelerating [non-inertial] mirror.... it would... drag the inertial frames
if it were an ideal 'graviton' mirror ... A static [non-inertial] mirror
leads to the removal of an infinite number of [vacuum] field modes
[harmonic oscillators in field space not physical space-JS]... this
correspnds to a (non-additive) infinite mass-renormalization, while the
variation of the distance between a pair of mirrors gives rise to the
finite Casimir effect...." p126

Zeh says p.127 that the virtual production of mini-black holes [Hawking's
'baby universes'] does not give a diection to time's arrow of our intuitive
causality. Sid Coleman of Harvard says it does give present epoch zero
cosmological constant - not the case in inflation where anti-gravity
cosmological constant inflates the universe allegedly -JS

"For the Unruh radiation, the energy required for the excitation of the
detector is drawn from the acceeleration mechanism [e.g. Star Ship engines
will have to increase their power or ship will slow down -JS] , for the
Hawking radiation from the mass of the black hole. Since the presence of
the thermal radiation depends upon the inertial state of the observer, the
black holes loss of mass must also be observer-dependent [hence not 'real'!
- JS] To quote Hawking 91976):
'If spacetime is quantized, one has to abandon the idea of a metric which
is independent of the observer ... The reason is that to determine where
one is in spacetime one has to 'measure' the metric,.and this act of
measurement places one in one of the different branches of the wave
function in the Everett-Wheeler [many worlds] interpretation.'

The GOD(D) Drive of the most advanced Star Ships uses this psycho-geometric
mode of propulsion - requiring an Omega class bionic man at the helm...