Boltzmann
    Equation, 140
Bose statistics
    Einstein interpretation, 115
    equation, 65

Coordinates
    generalized, 28
    generallized, 26
Current
    Diffusion, 156
    Electrical, 154
    Energy, 147
    Particle, 147
    pn-Junction, 158
    Semiconductor, 150

Diffusion, 156

Emission
    Induced, 123
    Spontaneous, 123
Energy
    free, 27, 34
    inner, 34
Energy conservation, 12
Ensembles
    Canonical, 53
    Definition, 52
    Grand Canonical, 59
    Microcanonical, 58
    Restrictions, 52
Entropy, 14
    Definition, 48
Equipartition Law, 89

Fermi statistics
    equation, 65
First Axiom of Thermodynamics, 12
Forces
    generalized, 28
    generallized, 26
Free Energy, 27

Ideal Gas, 75
Information
    Measure, 45

Laser
    Injection, 131
    Oscillator, 124
    Semiconductor, 126
Legendre-Transformation, 31

Parameter
    extensive, 26, 28
    intensive, 26, 28
Phase Volume, 71
pn-Junction, 158
Potential
    Meaning, 18

Relaxation Time, 144

Second Axiom of Thermodynamics, 14
Specific Heat Capacity
    Bosons, 92
    Definition, 84
    Fermions, 105
Sum of states
    Calculation, 64
Synergy, 132
System
    isolated, 23
    p and T controlled, 25
    thermal equilibrium, 24

Temperature, 11
    Integrating Factor, 15
Total derivative, 18

Uncertainty
    Measure, 45

Zero’s Axiom of Thermodynamics, 11