Charles Augustin Coulomb (1736-1806) France Coulomb's Law ~1875 - - PowerPoint PPT Presentation

Charles Augustin Coulomb (1736-1806) France Coulomb's Law ~1875

Mini Mini-

• Ph.D.

Ph.D. – Quantum Mechanics 101 Quantum Mechanics 101

Lesson 1: Lesson 1:

Size actually does matter. Size actually does matter. y

Determine the postion and velocity

• f a car … no problem
• f a car … no problem

Determine the postion and velocity

• f a small particle … no problem
• f a small particle … no problem

Problem!

Cannot have

Problem! Heisenberg

Cannot have perfect knowledge of

uncertainty principle

both the position and velocity

Heisenberg

The fundamental nature of forces: virtual particles The fundamental nature of forces: virtual particles p

Et  h Heisenberg E = mc2 Einstein e-

Same mass - Opposite electric charge and magnetic moment pp g g

+

e+e- qq qq e+e-

+

e+e- e+e- e+e e+e- qq qq e+

+e-

qq qq qq qq

Much ado about NOTHING: Much ado about NOTHING:

• R. Kolb

qq qq qq qq e+

+e-

qq qq qq qq qq qq qq qq

Nothing is something Nothing is something

e+e- e+e- e+e- qq qq e+e- e+e- qq qq e+e- e+e-

Nothing has energy Nothing has energy Nothing interacts with something Nothing interacts with something

qq qq qq qq e+

+e-

qq qq qq qq e e qq qq

g g g g

qq qq qq qq qq qq qq qq

Quantum Chromodynamics Quantum Chromodynamics QCD QCD

rength

QCD QCD

elative str asymptotic freedom

Why bare quarks Why bare quarks h b h b

distance re

have never been have never been

• bserved.
• bserved.

distance energy density, temperature

quark quark-antiquark pair created from vacuum Strong color field

“ hit ”

Strong color field Energy grows with separation !!!

E=mc2 !

“white” proton

“white” proton (confined quarks)

“white” 0

(confined quarks)

Thanks to Mike Lisa (OSU) for parts of this animation