Friday, September 27, 2013
Scientists confirm the existence of parallel worlds
Worlds
A team of scientists at Oxford University have demonstrated that parallel universes do exist. The same theory these worlds appeared as early as 1950.
Hugh Everett felt that the Universe every new fact probably causes its division. In this way the number of alternative universes tend to infinity. This theory was recognized as fantastic and forgotten. But at Oxford ended unexpectedly concluded that Everett was on the right track.
Hugh Everett felt that the Universe every new fact probably causes its division. In this way the number of alternative universes tend to infinity. This theory was recognized as fantastic and forgotten. But at Oxford ended unexpectedly concluded that Everett was on the right track.
show that the shrubby branching structures, which arise during the degradation of the Universe in parallel versions of itself, explain the probabilistic nature of the effects of quantum mechanics.
That, say the scientists, it is inevitable that we live in one of the many parallel worlds and not a single.
--
Cheers Iceujin
Parallel universes aren’t just the stuff of
sci-fi, according to a mathematical
discovery by Oxford scientists. The
breakthrough is being described as "one
of the most important developments in
the history of science".
The parallel universe theory was first
proposed back in over half a century ago
in 1950 by US physicist, Hugh Everett.
The theory helps make sense of the many
mysteries of quantum mechanics that
have left scientists scratching their heads
for decades. In Everett's "many worlds"
universe, every time a new physical
possibility is explored, the universe splits
off. For each possible alternative
outcome, each one is played out in an
alternate universe. The implication would
mean that the number of alternative
scenarios in every individual’s lives would
be bizarrely and unfathomably endless.
Partly because the idea is so
uncomfortably strange, it’s dismissed as
sci-fi by many critics. But there are also
many credible, respected proponents of
the theory—a group that is continuously
gaining new adherents as new research
unveils new evidence. The new research
stemming from Oxford now—for the first
time—offers a mathematical answer that
sweeps away one of the key objections to
the controversial idea. Their research
shows that Dr Everett, a Phd student at
Princeton University back was indeed on
the right track when he came up with his
multiverse theory.
Dr Andy Albrecht, a physicist at the
University of California at Davis
commented, "This work will go down as
one of the most important developments
in the history of science."
According to quantum mechanics, nothing
at the subatomic scale can really be said
to exist until it is observed. Until then,
particles occupy uncertain "superposition"
states, in which they can have
simultaneous "up" and "down" spins, or
appear to be in different places at the
same time. The mere act of observing
somehow appears to "nail down" a
particular state of reality. Scientists don’t
yet have a perfect explanation for how it
works, but that hasn’t changed the fact
that the phenomenon appears to be real.
According to quantum mechanics,
unobserved particles are described by
"wave functions" representing a set of
multiple "probable" states. When an
observer makes a measurement, the
particle then settles down into one of
these multiple options, which is
somewhat how the multiple universe
theory can be explained.
The Oxford team, led by Dr David
Deutsch, showed mathematically that the
bush-like branching structure created by
the universe splitting into parallel
versions of itself can explain the
probabilistic nature of quantum
outcomes.
The work has another very strange
implication. The idea of parallel universes
would apparently sidesteps one of the
key complaints with time travel. Every
since it was given serious credibility in
1949 by the great logician Kurt Godel,
many eminent physicists have argued
against time travel because it undermines
ideas of cause and effect to create
paradoxes. An example would be the
famous “grandfather paradox” where a
time traveler goes back to kill his
grandfather so that he is never born in
the first place.
But if parallel worlds do exist, there is a
way around these troublesome
paradoxes. Deutsch argues that time
travel shifts happen between different
branches of reality. The mathematical
breakthrough bolsters his claim that
quantum theory does not forbid time
travel. "It does sidestep it. You go into
another universe," he said. But he admits
that there will be a lot of work to do
before we can manipulate space-time in a
way that makes “hops” possible. While it
may sound fanciful, Deutsch says that
scientific research is making the theory
sound much more believable.
"Many sci-fi authors suggested time travel
paradoxes would be solved by parallel
universes but in my work, that conclusion
is deduced from quantum theory itself."
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