Transcript Atoms in Magnetic Field - Physikalisches Institut

Atoms in Magnetic Field
Zeeman and Paschen-Back effect
typischeparameter:
 B  1.4 MHz/Gauss
 B  5.78109 eV/Gauss
 B  67 K/Gauss
Atoms in Magnetic Field
Breit Rabi Formula for F=I+1/2
EBHFS ( F  I  12 , mF )  
x
E
A
4mF
 mF g K  K B  0 1 
x  x2
4
2
2I  1
g J  B  g K  K 2 B

E0
E0
E0  A( I  12 )
Atoms in Electric Field
Stark effekt
U   40 E
1
2
typischeparameter:
 Na  24 A3
 
U Pol [eV ]  0.034723  A3  V 2 V/A 
2
Radiation Field
modes and quantisation
Radiation Field
thermal radiation
Radiation Field
Rate equations and Einstein relations
g1
g2
B12
 3
 2c3
A21
B21
 B21

A21

 03 g1

B
21
 2c3 g 2
2
e 03 g1
12
3 0 c 3 g 2
D
Radiation Field
coherent field
Coupled Two Level System
basics
Coupled Two
Level System
Coupled Two Level System
Dynamical effects in avoided crossings …
Coupled Two Level System
Dynamical effects in avoided crossings …
Coupled Two Level System
Dynamical effects in avoided crossings …