Quantum Coherence Correlation and Decoherence in Semiconductor Nanostructures (eBook)

Cover 1
Copyright Page 5
Contents 10
Preface 6
List of Contributors 8
Chapter 1. Coherent nonlinear pulse propagation on a free-exciton resonance in a semiconductor 18
1.1 Introduction 18
1.2 Theoretical background 19
1.3 Samples and experimental techniques 23
1.4 Results and discussion 25
1.5 Conclusions 35
Chapter 2. Carrier-wave Rabi flopping in semiconductors 40
2.1 Introduction 40
2.2 Carrier-wave Rabi flopping 42
2.3 Conclusions 54
Chapter 3. High-field effects in semiconductor nanostructures 57
3.1 Introduction 57
3.2 General theory 60
3.3 High-field electo-optics in quantum wells and wires 62
3.4 Excitonic trapping, ultrafast population transfer, and Rabi flopping 80
3.5 Carrier-wave Rabi flopping 88
3.6 Conclusions 100
Chapter 4. Theory of resonant secondary emission: Rayleigh scattering versus luminescence 106
4.1 Introduction 106
4.2 Disorder eigenstates of excitons 111
4.3 Exciton Hamiltonian and density-matrix approach 118
4.4 Exciton kinetics with acoustic phonon scattering 125
4.5 Coherent and incoherent emission in the time domain 130
4.6 Speckle measurement and interferometry 134
4.7 Frequency-resolved secondary emission 137
4.8 Signatures of level repulsion 140
4.9 Enhanced resonant backscattering 149
4.10 Spin- and polarization-dependent emission 156
4.11 Polariton effects in the secondary emission 164
Chapter 5. Higher-order Coulomb correlation effects in semiconductors 183
5.1 Introduction 183
5.2 Ultrafast spectroscopy of semiconductor nanostructures as probes of Coulomb correlations 184
5.3 Beyond the screened HF approximation – theoretical approaches to many-body correlations 195
5.4 Experimental studies of high-order Coulomb correlations 204
5.5 Future directions 218
Chapter 6. Electronic and nuclear spin in the optical spectra of semiconductor quantum dots 224
6.1 Introduction to spin in the optical spectrum 224
6.2 Photoluminescence spectroscopy of quantum dots 228
6.3 Exciton fine-structure (spin and sublevels) 236
6.4 Trions (singly charged excitons) 257
6.5 Hyperfine interaction 269
6.6 Spin relaxation 280
6.7 Conclusions 288
Chapter 7. Coherent optical spectroscopy and manipulation of single quantum dots 298
7.1 Introduction 299
7.2 Single exciton optical spectroscopy 310
7.3 Coherent optical control of single exciton states 323
7.4 Rabi oscillations of single quantum dots 327
7.5 Biexcitons in single QDs 335
7.6 Optically induced two exciton-state entanglement 347
7.7 Single quantum dot as a prototype quantum computer 355
7.8 Summary 371
Chapter 8. Cavity QED of quantum dots with dielectric microspheres 383
8.1 Introduction 383
8.2 Whispering gallery modes in a dielectric microsphere 385
8.3 Composite system of dielectric microsphere and MBE-grown nanostructure 389
8.4 Composite system of dielectric microsphere and semiconductor nanocrystals 392
8.5 Summary 407
Chapter 9. Theory of exciton coherence and decoherence in semiconductor quantum dots 412
9.1 Intoduction 412
9.2 Exciton Rabi splitting in a single quantum dot 413
9.3 Dressed exciton state 418
9.4 Exciton Rabi oscillation in a single quantum dot 419
9.5 Bloch vector model 423
9.6 Numerical results and discussion 427
9.7 Wave packet interferometry 437
9.8 Effect of two-photon coherence 441
9.9 Exciton dephasing in semiconductor quantum dots 448
9.10 Green function formalism of exciton dephasing rate 453
9.11 Exciton–phonon interactions 459
9.12 Excitons in anisotropic quantum disk 461
9.13 Temperature-dependence of the exciton dephasing rate 462
9.14 Elementary processes of exciton pure dephasing 467
9.15 Mechanisms of population decay of excitons 469
9.16 Recent progress in studies on exciton decoherence 476
9.17 Theory of dephasing of nonradiative coherence 476
9.18 Summary 482
Index 488
Color Plate Section 502