Feynman diagrams, quantum circuits,
and AdS/CFT
An
introduction to the new universe
by Bob Dorsett
August 2018
Wyethia and
Lupine
near Kebler Pass, Colorado. Bob Dorsett.
This article attempts to
summarize recent developments in spacetime physics. It’s an exciting time. Ideas from several different realms are
converging on a new model for how the world works. It’s not just particles and forces any
more. The world acts like a quantum
computer.
Information theory is the new
kid on the block. Physicists are making
progress understanding black holes using ideas first conjured by communications
engineers, and vice versa computer scientists are employing ideas from physics
to optimize computer code. Complexity
theory of emergent systems, a favorite of biologists, now is producing fruits
in physics as well. Meantime, physicists
are finding new connections between old ideas, with surprising
implications. The goal of this article
is to provide some background for these developments and to paint a plausible,
but far from complete, picture of how the world works.
I hope you enjoy exploring these ideas as much as I have.
Physics Since AdS/CFT
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Links
to other String Resources:
- Online Lectures
- Online Articles
- Books
- Journals
- String Theory Web Sites
- Video Programs
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The Picture:
The photograph
shows a typical subalpine
community in the central Colorado Rockies, including a population of
Wyethia
(Mule's ears, the large yellow composites), lupine (purple flower in
the
left foreground) and, on the skyline, alpine fir. Living
organisms
in this environment must adapt to harsh extremes -- cold winters with
heavy
snowfall, hot and dry summers. If all the multiverse is
string, here are strings at work. (And I like the picture.)
BrainTeasers:
Make the
following equation in Roman
numerals using matchsticks:
| + || + ||| +
|||| =
Move one
matchstick to a new location
in the equation so that the sum equals 4.
Car
Talk Puzzlers
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Contact:
dorsett.bob@gmail.com
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