Quantum Field Theory for condensed matter
This is an advanced course where the machinery of quantum field theory is applied to condensed matter systems.
In this course we start from second quantization and study quantum field theoretical formulation of many particle theory. The concept of effective action and effective theory, such as mean field theory, is discussed, as well as other important concepts such as linear response theory and Fermi liquid theory. We also study quantum field theory at finite temperature, spontaneous symmetry breaking and phase transitions. Finally, topological effects in many particle systems are introduced.
Information for admitted students spring 2025
Congratulations! You have been admitted at Stockholm University and we hope that you will enjoy your studies with us.
In order to ensure that your studies begin as smoothly as possible we have compiled a short checklist for the beginning of the semester.
Follow the instructions on whether you have to reply to your offer or not.
universityadmissions.se
Checklist for admitted students
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Activate your university account
The first step in being able to register and gain access to all the university's IT services.
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Register at your department
Registration can be done in different ways. Read the instructions from your department below.
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Read all the information on this page
Here you will find what you need to know before your course or programme starts.
IMPORTANT
Your seat may be withdrawn if you do not register according to the instructions provided by your department.
Information from the department
Everyone admitted to a course in Physics will receive a welcome letter with important information from us via e-mail. If you have not receive an e-mail by mid-January, please contact our Academic advisor! Unfold and read more.
Roll-call
Courses at the Department of Physics do not have a roll-call. Instead the course starts with the first lecture.
Registration
After being admitted to a course, you must register to confirm that you are starting your studies. For most of our courses this can be done online using your university account. Registration normally opens two weeks before the course starts and you must have registered at the latest one week after. If you have any problems with registration, contact our Student office. Contact details can be found below.
Click here to register online.
Learning platform
Most of the courses in physics use the Athena learning platform. Once registered, the course should appear automatically in Athena. If you cannot find the course, contact the course coordinator. If the course uses a different website, you can find the link further down on this web page.
Conditionally admitted
If you are conditionally admitted to a course at our department you need to contact our Academic advisor before you can register. Contact us as soon as possible, well before the course starts. Contact details are found further down on this web page.
Applicants on waiting list
Are you placed on a waiting list to any of our courses? You will always be contacted via e-mail if you are offered a place. Normaly we will not admit new students if more than 1 week has passed after the first lecture.
Find the Departmend of Physics
Most of the physics courses are held in the AlbaNova building, located between the Frescati campus and the Royal Institute of Technology (Tekniska högskolan, KTH). Courses in medical radiation physics are sometimes held at Campus Karolinska Hospital. A few of our physics courses are also given in collaboration with KTH or other departments. If this is the case it is clearly stated further down on this web page.
Welcome activities
Stockholm University organises a series of welcome activities that stretch over a few weeks at the beginning of each semester. The programme is voluntary (attendance is optional) and includes Arrival Service at the airport and an Orientation Day, see more details about these events below.
Your department may also organise activities for welcoming international students. More information will be provided by your specific department.
Find your way on campus
Stockholm University's main campus is in the Frescati area, north of the city centre. While most of our departments and offices are located here, there are also campus areas in other parts of the city.
Read more
For new international students
In this course we start from second quantization and study quantum field theoretical formulation of many particle theory. The concept of effective action and effective theory, such as mean field theory, is discussed, as well as other important concepts such as linear response theory and Fermi liquid theory. We also study quantum field theory at finite temperature, spontaneous symmetry breaking and phase transitions. Finally, topological effects in many particle systems are introduced.
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Course structure
This is a Master's level course, given in half pace during daytime.
Teaching format
The teaching consists of lectures and problem solving sessions. There will also be active learning elements, such as small group discussions and/or student presentations.
Assessment
Written exam at the end of the course, hand-in exercises, active participation in seminars.
Examiner
Emil Bergholtz
E-mail: emil.bergholtz@fysik.su.se
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Schedule
The schedule will be available no later than one month before the start of the course. We do not recommend print-outs as changes can occur. At the start of the course, your department will advise where you can find your schedule during the course. -
Course literature
Note that the course literature can be changed up to two months before the start of the course.
Piers Coleman: Introduction to many-body physics (Cambridge University Press, 2015).
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Course reports
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Contact
Course coordinator and teacher:
Emil Bergholtz, e-mail: emil.bergholtz@fysik.su.se
Exercises:
Tommaso Bertolini, e-mail:
tommaso.bertolini@fysik.su.seAcademic advisor at the Department of Physics: studievagledare@fysik.su.se
Student office: studentexp@fysik.su.se
