Did We Just Discover The Universe's Greatest Weakness?
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Not only God knows, I know. And by the
end of the semester, you will know.
This is how the physicist Sydney Coleman
would kick off his lectures on quantum
theory at Harvard. Coleman claimed that
he never really liked teaching, but his
enthusiasm was electric and his courses
were considered legendary. Though his
name is not as wellknown as Einstein or
Hawking, he was held in the highest
regard amongst his peers. Indeed,
groundbreaking physicist Sheldon Glashau
once said, "He's kind of a major god. He
is the physicist's physicist."
And yet, arguably, this jovial legend of
physics greatest achievement was
revealing something truly spine-
chilling. For in the late 1970s, Coleman
figured out how to destroy the entire
universe.
The possibility that we are living in a
false vacuum has never been a cheering
one to contemplate. However, one could
always draw stoic comfort from the
possibility that perhaps in the course
of time the new vacuum would sustain, if
not life as we know it, at least some
structures capable of knowing joy.
This possibility has now been
eliminated.
Coleman discovered that our universe is
under constant threat. That at any
moment, at any point in time and space,
reality could begin to change. Change in
a way so unforgiving that nothing could
survive it.
The story of the unraveling of this
mystery will introduce us to some of
science's great personalities. Men and
women who peeled back reality and
created a framework out of which our
universe could appear. But most
importantly of all, this story will pull
us deep into the bizarre world of the
standard model of particle physics and
the one particle that sits apart from
all the others. The one particle with
the power to eliminate everything in
existence. That godamn particle, or as
it's more commonly known, the God
particle.
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As the Trinity Test mushroom cloud
bloomed into the sky on July 16th, 1945,
physicist Kenneth Bainbridge turned to
Robert Oppenheimer and uttered the
immortal phrase, "Now we're all sons of
bitches."
Indeed, after the magnitude of the test
had set in, and the initial flurry of
excitement had dulled down, there was a
palpable sense of unease across many at
Los Alamos. In the initial rush of
adrenaline after the detonation, famed
New York physicist Richard Fineman had
played his iconic bongos on the hood of
a jeep. And in his words, "Everyone had
parties." But quickly the mood would
turn sour. I sat in a restaurant in New
York and I looked out at the buildings
and I began to think about how much the
radius of the Hiroshima bomb damage was
and so forth. And I would go along and
see people building a bridge or they'd
be making a new road and I thought,
"They're crazy. They just don't
understand why are they making new
things. It's so useless.
The Manhattan Project had employed over
130,000 people in its prime and 26 of
its scientists already had or would go
on to win a Nobel Prize. It had been the
focal point for much of the physics
community for half a decade. And so
after this long interruption, it was
decided that physicists should gather
together to return to science for
science's sake once again. And in 1947,
Oppenheimer himself helped organize a
conference on Shelter Island.
To quote later Nobel Prize winner Julian
Schwinger, "It was the first time that
people who had all this physics pent up
in them for 5 years could talk to each
other without somebody peering over
their shoulders and saying, "Is this
cleared?
And it would be at this conference that
Richard Fineman and Julian Schfinger
himself would propose some
groundbreaking quantum ideas.
But what does any of this have to do
with Sydney Coleman and the destruction
of the entire universe?
To answer this question, we must take a
journey downwards down into the deepest
layers of reality. down below the scales
of molecules and atoms beyond the pieces
of the atomic nucleus down to what we
think are the ultimate building blocks
of reality. And to a physicist, this
world is written in the language of the
standard model of particle physics.
The standard model is the result of more
than a century of deciphering the laws
of the universe. A world even more
fundamental than the atomic one explored
by the Manhattan Project.
First, there are the Firmians. The
fundamental particles that comprise the
stuff of matter, named after Italian
American physicist Enrico Fermy.
Firmians come in two types, the quarks
and the leptons that feel the
fundamental forces differently. The
quarks feel the strong force and are
bound together by it into composite
particles, collections of two or three.
Indeed, these include the protons and
neutrons that sit at the core of every
one of your atoms. Atoms though circled
by electrons, which as leptons
completely ignore the strong force
and the complement to the firmians are
the Bzons named after the Indian
physicist Chachendra Nath Bose. The
bzons are different as they carry the
fundamental forces between the firmians.
For the strong force we met a moment
ago, the carrier of force is the gluon.
For electromagnetism, the bzon is the
photon, the particle of light. For the
weak force, there are the W and Z bzons.
And for the final fundamental force,
gravity, physicists still aren't sure.
Now the idea of Bzons as force carriers
may seem strange but you have to
remember that particles are not really
particles
and this is key.
The standard model is written in the
language of quantum mechanics where
everything is a wave in a field. An
electron is a ripple in the electron
quantum field. A quark is a ripple in a
quark quantum field. And each Bzon is a
ripple in a Bzon field.
Everything is fields.
In the simplest form, a field is
something that is spread throughout
space. And that something attaches a
number to each point in that space. For
example, think about the temperature in
the air around you. Some spots may be
warmer, some cooler, and at each point,
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