D1 - Knowledge and understanding: The course provides a theoretical introduction to modern phenomena related to condensed matter physics. D2 – Ability to apply knowledge and understanding: The theoretical lessons will be accompanied by exercises that deal with topics of current interest for research in condensed matter physics. D3 - Judgement autonomy: During the course, students will develop quantitative reasoning skills and problem-solving skills related to the field of condensed matter physics, with the aim of being able to understand and model phenomena of fundamental and applied interest. D4 – Communication skills: Reach the skills to be able to describe advanced concepts of condensed matter physics, also in connection with the possibility of reading and understanding current research topics in the field. D5 - Learning ability: Reach the ability to independently consult scientific texts and articles in order to independently delve into some topics introduced during the course.

Quantum and statistical mechanics. The basic concepts of condensed matter physics (covered in the course Condensed Matter Physics I).

ELEMENTARY EXCITATIONS IN CONDENSED MATTER Phonons in crystals. The Hartree-Fock approximation and the electron gas. Landau theory for Fermi liquids. LINEAR RESPONSE THEORY Calculation of the density-density and current-current response for electrical conductivity. MAGNETISM IN INSULATORS AND METALS Microscopic description of paramagnetism, diamagnetism and ferromagnetism. PHENOMENOLOGY AND THEORY OF SUPERCONDUCTIVITY London's theory. The Ginzburg-Landau theory. The role of the electron-phonon interaction. The Bardeen-Cooper-Schrieffer theory.

N. Ashcroft and N.D. Mermin, Solid State Physics.
P.W. Anderson, Basic Notions Of Condensed Matter Physics.
P. Fazekas, Lecture Notes on Electron Correlation and Magnetism.
M. Tinkham, Introduction to Superconductivity.

ELEMENTARY EXCITATIONS IN CONDENSED MATTER Phonons in crystals. The Hartree-Fock approximation and the electron gas. Landau theory for Fermi liquids. LINEAR RESPONSE THEORY Calculation of the density-density and current-current response for electrical conductivity. MAGNETISM IN INSULATORS AND METALS Microscopic description of paramagnetism, diamagnetism and ferromagnetism. PHENOMENOLOGY AND THEORY OF SUPERCONDUCTIVITY London's theory. The Ginzburg-Landau theory. The role of the electron-phonon interaction. The Bardeen-Cooper-Schrieffer theory.

Lectures will have a theoretical aspect. The student's active participation will be stimulated by simple exercises.

- The written part, typically lasting 2h:30', consists of the solution of numerical problems and exercises; it is given a grade (from insufficient to excellent), published on esse3 or communicated individually to the students by e-mail. - Oral examination. The duration of the exam is approximately 1 hour and is based on two open questions on the entire course program. The final grade takes into account how much the student has acquired of the physical concepts and theoretical tools presented in the course.