Art is long, Life is short

Arts in String Theory

1. The art is long, life is short.

(Hippocrates)

2. “TOLD YOU SO”
SINCERELY, YOUR INTUITION

6. &

Medical & Science

WOE

means

Weight of Evidence

by acronymsandslang.com

7. COMMUNICATION is...

sometimes nonverbal.

We also communicate
with facial expressions,
body language, and
tone of voice.

NONVERBAL COMMUNICATION ACTIVITIES:
PUPPET SHOW

8. shutterst ck

10. %

18. STRING THEORY GUMMAR IZED:

1 JUST HAD AN AWESOME IDEA.
SUPPOSE ALL MATTER AND ENERGY |
15 MADE OF TINY, VIBRATING “STRINGS:

> IMAPLY 7

\ OKAY. WHAT WOULD

\ =

RR

20. eet ed ore

21. STRING THEORY

MATTER
MOLECULE

) à
>
2
0

3
à
>
3
0
3
Zz
€
8
0]
£
5

Molecules

= Proton

Electron

22. Going Full Circle

The universe is made of tiny, identical strings:

The diversity of observed particles comes from
the infinite number of different ways a string
can vibrate. (Harmony of the Strings)

23. The History of String Theory

A beautiful idea in search of a meaning

e Origin: try to explain the strong nuclear force

> At first, didn't even realize the theory described strings
e The theory didn’t work

+ Failed to match further experiments (no quarks)

>» Always included a “spin 2” particle not seen in nuclei
e New insight: “spin 2” particles are gravitons!

» Now recognized as a quantum theory with gravity
@ Since then: many years of refining the theory

- Work toward self-consistency and uniqueness

24. In String Theory, Particles are Strings

Different Vibrations > String Combinations >
Different Particles Particle Interactions

up down

quark quark election

25. Classical Closed String Motions

How can they carry energy?

eMass (energy) per unit length

» Natural length zero
«Overall momentum

eVibrations along the string

— —,
» Left & right movers = independent
* Infinitely many hannonic modes

eThese waves are polarized

+ Oscillate any spatial direction —
e: rallel to momentun = >

27. Characteristics of the strings

In a guitar string, the different notes that sound when the
string is plucked are a result of the properties of the string:
tension, length, thickness.

The notes coming out of the guitar are excitation modes of
the string.

The particles that are observed in particle accelerators can be
thought of as musical notes, or excitations modes of strings.
Different excitation modes make the strings appear as
electrons, photons, and so on.

Strings have a miniscule length that is known as the Planck
length. The Planck length is about 10°73 centimeters

28. Levels of magnification:
1. Macroscopic level - Matter

2. Molecular level

3. Atomic level -

Protons, neutrons, and electrons
4. Subatomic level - Electron

5. Subatomic level - Quarks

6. String level

29. String Theory

Generalization of quantum field
theory. Hot topic of last 20 years
Objects are not “points” but “Loops”
Particles are “vibrations” of the
loops like tones on a guitar string.
One of the modes is a graviton that
causes gravity

Open strings are photons.

Space time is in 10 dimensions.
What happened to the other 4?
Compactified so we cannot see
them now.

Latest version is M-theory in 11
dimensions. Can contain “branes”:
(membranes): generalizations of
strings to higher dimensions.

More complicated, so fewer results

31. THE GREAT THING ABOUT
STRING THEORY IS THAT IT TIES
uP QUITE A FEW LOOSE ENDS

CHRIS MADDEN

32. String 1neory Conclusion

ae a ee dr

[so co wir
Iran li

"In conclusion... ahhh... we dont know."

33. STRING: THEORY RESEARCH

34. Scare De oaks

“| discovered string theory long before physicists
did.”

35. STRING THEORY

36. Fact 319

According to the myth, the gods tie an
invisible red string around the little finger
of people who are destined to be soul
mates and will one day marry each other.
It can get twisted and knotted..but it will
never be broken.

nat M

Tinyfacts.net

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