Luca Salasnich is an Associate Professor of Condensed Matter Physics at the Department of Physics and Astronomy “Galileo Galilei”, University of Padova, Italy. He was previously a research scientist with the Italian National Research Council (CNR). Dr. Salasnich was awarded an MSc in Physics by the University of Padova in 1991, and his PhD in Theoretical Physics by the University of Florence in 1995. His fields of research are condensed matter theory and statistical physics, in particular nonlinear phenomena and macroscopic quantum effects (like superfluidity and superconductivity) in ultra-cold atomic gases and other many-body systems. At the University of Padova, Dr. Salasnich is a member of the Scientific Committee of Area 2 (Physical Sciences) and President of the Teaching Council for the BSc in Optics and Optometrics. He has written more than 130 scientific papers for international journals, with over 2500 citations.

• 1 The Origins of Modern Physics.- 2 Second Quantization of Light.- 3 Electromagnetic Transitions.- 4 The Spin of the Electron.- 5 Energy Splitting and Shift due to External Fields.- 6 Many-Body Systems.- 7 Second Quantization of Matter.- 8 Functional Integration for the Bosonic Field.- 9 Functional Integration for the Fermionic Field.- Appendix A Dirac Delta Function.- Appendix B Fourier Transform.- Appendix C Laplace Transform.- Bibliography.

Luca Salasnich is an Associate Professor of Condensed Matter Physics at the Department of Physics and Astronomy “Galileo Galilei”, University of Padova, Italy. He was previously a research scientist with the Italian National Research Council (CNR). Dr. Salasnich was awarded an MSc in Physics by the University of Padova in 1991, and his PhD in Theoretical Physics by the University of Florence in 1995. His fields of research are condensed matter theory and statistical physics, in particular nonlinear phenomena and macroscopic quantum effects (like superfluidity and superconductivity) in ultra-cold atomic gases and other many-body systems. At the University of Padova, Dr. Salasnich is a member of the Scientific Committee of Area 2 (Physical Sciences) and President of the Teaching Council for the BSc in Optics and Optometrics. He has written more than 130 scientific papers for international journals, with over 2500 citations.

• 1 The Origins of Modern Physics.- 2 Second Quantization of Light.- 3 Electromagnetic Transitions.- 4 The Spin of the Electron.- 5 Energy Splitting and Shift due to External Fields.- 6 Many-Body Systems.- 7 Second Quantization of Matter.- 8 Functional Integration for the Bosonic Field.- 9 Functional Integration for the Fermionic Field.- Appendix A Dirac Delta Function.- Appendix B Fourier Transform.- Appendix C Laplace Transform.- Bibliography.

Luca Salasnich is an Associate Professor of Condensed Matter Physics at the Department of Physics and Astronomy “Galileo Galilei”, University of Padova, Italy. He was previously a research scientist with the Italian National Research Council (CNR). Dr. Salasnich was awarded an MSc in Physics by the University of Padova in 1991, and his PhD in Theoretical Physics by the University of Florence in 1995. His fields of research are condensed matter theory and statistical physics, in particular nonlinear phenomena and macroscopic quantum effects (like superfluidity and superconductivity) in ultra-cold atomic gases and other many-body systems. At the University of Padova, Dr. Salasnich is a member of the Scientific Committee of Area 2 (Physical Sciences) and President of the Teaching Council for the BSc in Optics and Optometrics. He has written more than 130 scientific papers for international journals, with over 2500 citations.

• 1 The Origins of Modern Physics.- 2 Second Quantization of Light.- 3 Electromagnetic Transitions.- 4 The Spin of the Electron.- 5 Energy Splitting and Shift due to External Fields.- 6 Many-Body Systems.- 7 Second Quantization of Matter.- 8 Functional Integration for the Bosonic Field.- 9 Functional Integration for the Fermionic Field.- Appendix A Dirac Delta Function.- Appendix B Fourier Transform.- Appendix C Laplace Transform.- Bibliography.