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2024 Faculty Courses School of Science Undergraduate major in Physics

Statistical Mechanics II(Lecture)

Academic unit or major
Undergraduate major in Physics
Instructor(s)
Syuichi Murakami
Class Format
Lecture (Face-to-face)
Media-enhanced courses
-
Day of week/Period
(Classrooms)
5-6 Mon / 5-6 Thu
Class
-
Course Code
PHY.S312
Number of credits
200
Course offered
2024
Offered quarter
2Q
Syllabus updated
Mar 14, 2025
Language
Japanese

Syllabus

Course overview and goals

Topics of this course include (1) grandcanonical ensemble, (2) basics of quantum statistical mechanics, in particular physics of fermions and bosons, (3) basics of statistical mechanics of interacting systems, and (4) phase transitions and critical phenomena.
Through this course, students will understand basic properties of physical phenomena based on grandcanonical ensemble, statistics of fermions or bosons, and understand various phase transitions which can be observed experimentally.

Course description and aims

Through this course, students will be able to (1) explain grandcanonical ensembles, (2) explain basic properties of fermions and bosons,(3) calculate physical properties of fermions and bosons, and (4) explain basics of phase transitions and critical phenomena.

Keywords

grandcanonical ensemble, chemical potential, fermion, boson, Bose condensation, phase transition, critical exponent, mean-field theory

Competencies

  • Specialist skills
  • Intercultural skills
  • Communication skills
  • Critical thinking skills
  • Practical and/or problem-solving skills

Class flow

The contents will be explained through lectures. The 3rd, 4th, 5th, 6th, 10th, and 11th lectures might be in the on-demand format, and the details will be explained in the class. The tools such as T2SCHOLA and google forms will be used to communicate with students.

Course schedule/Objectives

Course schedule Objectives
Class 1 Conditions of thermal equilibrium and chemical potential Explanation on conditions of thermal equilibrium and introduction of chemical potential
Class 2 Chemical potential and grand canonical ensemble Explanation on chemical potential, related physical quantities, and grand canonical ensemble
Class 3 Properties of grand canonical ensemble Explanation on properties of grand canonical ensemble, and calculation of the grand partition function of an ideal gas
Class 4 Quantum mechanics of many-body systems Explanation quantum mechanics of many-body systems and particle statistics
Class 5 Grand partition function of many-body systems and particle statistics Explanation on grand partition function of many-body systems and particle statistics
Class 6 Fermions and Fermi statistics Explanation on Fermi statistics and Sommerfeld expansion
Class 7 Properties of fermion systems Explanation on properties of fermion systems, such as chemical potential, specific heat, and spin susceptibility
Class 8 Bosons and Bose statistics Explanation on bosons and Bose statistics
Class 9 Bose condensation Explanation on Bose condensation
Class 10 Basics of phases and phase transitions Explanation on basics of phases and phase transitions
Class 11 Landau theory Explanation on Landau theory
Class 12 Mean-field theory and order-disorder transitions Explanation on mean-field theory and order-disorder transitions
Class 13 Mean-field theory for magnets Explanation on mean-field theory for magnets
Class 14 Example of exactly solvable models Explanation on exact solutions of the one-dimensional Ising model

Study advice (preparation and review)

To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.

Textbook(s)

N/A

Reference books, course materials, etc.

Handouts will be distributed

Evaluation methods and criteria

exam and reports

Related courses

  • PHY.S301 : Statistical Mechanics
  • PHY.Q207 : Introduction to Quantum Mechanics
  • PHY.E205 : Electromagnetism

Prerequisites

Basic knowledge on statistical mechanics (microcanonical and canonical ensembles), electromagnetism, and quantum mechanics