Engineering Quantum Mechanics [Hardcover]

There has been growing interest in the model of semiconductor lasers with non-Markovian relaxation. Introducing senior and graduate students and research scientists to quantum mechanics concepts, which are becoming an essential tool in modern engineering, Engineering Quantum Mechanics develops a non-Markovian model for the optical gain of semiconductor, taking into account the rigorous electronic band-structure and the non-Markovian relaxation using the quantum statistical reduced-density operator formalism. Example programs based on Fortran 77 are provided for band-structures of zinc-blende and wurtzite quantum wells.Preface vii

PART I Fundamentals 1

1 Basic Quantum Mechanics 3

1.1 Measurements and Probability 3

1.2 Dirac Formulation 4

1.3 Brief Detour to Classical Mechanics 8

1.4 A Road to Quantum Mechanics 14

1.5 The Uncertainty Principle 21

1.6 The Harmonic Oscillator 22

1.7 Angular Momentum Eigenstates 29

1.8 Quantization of Electromagnetic Fields 35

1.9 Perturbation Theory 38

Problems 41

References 43

2 Basic Quantum Statistical Mechanics 45

2.1 Elementary Statistical Mechanics 45

2.2 Second Quantization 51

2.3 Density Operators 54

2.4 The Coherent State 58

2.5 The Squeezed State 62

2.6 Coherent Interactions Between Atoms and Fields 68

2.7 The JaynesCummings Model 69

Problems 71

References 72

3 Elementary Theory of Electronic Band Structure in Semiconductors 73

3.1 Bloch Theorem and EffectilÃ#