No-nonsense Physicist (eBook)

Cover 1
Half Title 2
Title Page 4
Copyright Page 5
Table of Contents 8
Preface 10
Curriculum vitae 13
Personal recollections 19
Daniela Giuliani 20
Adriana Giuliani 21
Giuseppe Giuliani 23
Memories of Gabriele 24
Scientific contributions 26
Introduction to electronic and optical properties of two-dimensional molybdenum disulfide systems 27
1. introduction 27
2. Theory and method 30
2.1. Electronic band structure and low-energy Hamiltonian 30
2.2. Plasmons in MoS2 38
2.3. Ground-state energy and quantum magnetic phase transition in MoS2 38
2.4. Optical properties 43
2.5. Intrinsic dc-conductivity 46
2.6. Intrinsic dynamical conductivity 47
2.7. Circular dichroism and optical transmittance 50
3. Summary 52
References 53
Friedel oscillations in a lateral superlattice with spin-orbit interaction 58
1. Introduction 58
2. System Description 60
3. The density response function 63
4. Friedel oscillations 67
5. Results and Discussion 68
References 72
In-plane ferromagnetic instability in a two-dimensional electron liquid in the presence of Rashba spin-orbit coupling 74
The crescent moon instability 77
References 83
Josephson phase diffusion in small Josephson junctions: a strongly nonlinear regime 85
1. Introduction 85
2. The dynamics of the Josephson phase in the resistive state: the Josephson phase diffusion regime 87
3.Time-dependent correlation function of the Josephson phase 88
4. The I -V curves of small Josephson junctions: phase-diffusion regime 89
5. Discussion and Conclusions 90
References 91
Spin-dependent magnetic focusing 93
1. Introduction 93
2. Experiment 94
3. Theory 96
4. Semiclassical theory of focusing 97
5. Focusing peaks in in-plane magnetic field 99
6. Conclusion 103
References 104
Charge density wave surface phase slips and non-contact nanofriction 106
1. How it all began: Gabriele Giuliani and CDWin the 70’ 106
2. Introduction 108
3. The Ginzburg-Landau model 110
4. Equilibrium and time-dependent GL simulations 112
5. Discussion and conclusions 115
References 116
The quasiparticle lifetime in a doped graphene sheet 118
1. Introduction 118
2. Coulomb-enabled two-body decay rates in a doped graphene sheet 122
2.1. Intra-band contribution 124
2.2. Inter-band contribution 126
2.3. Intra-band scattering and the collinear scattering singularity 127
2.4. Asymptotic behavior of the decay rate for weakly-excited states 127
3. Summary and conclusions 132
References 132
Chirality, charge and spin-density wave instabilities of a two-dimensional electron gas in the presence of Rashba spin-orbit coupling 136
1. Introduction 136
2. Two dimensional electron gas in the presence of Rashba spin-orbit 137
3. Hartree-Fock theory of a two-dimensional electron liquid in the presence of Rashba spin-orbit coupling 139
4. Proof of the instability theorem 140
4.1. Instability for the case of chirality equal one 141
4.2. Instability for the case of chirality less than one 148
5. Conclusions 152
A. Appendix 153
A.1. Elliptic integral expansion 153
B. Evaluation of useful quadratures 154
References 156
A brief overview of Giuliani’s contribution to many-body aspects of the electron gas 158
References 160
Gabriele’s scientific highlights 162