This fascinating pattern is an example of diffusion-limited aggregation in 3D created by Paul Bourke.
This is the exercise blog of FYS4130. The idea is to facilitate communication between the students and the teachers of the course outside of teaching hours. Sometimes you just do not want to wait to have your frustration vented, anxiety relieved or curiosity rewarded by insight; in these cases this blog is the place to post questions and comments and get responses from Olav, Luiza and Jørgen as well as other students.
The oblig 2 is the second of two mandatory exercises that must be passed in order to take the final exam.
Corrected solutions can be picked up at the Physics Front Office.
This week's probem set is about phase transitions in the mean field approximation.
Exercises: (12.4) and (12.5) in Sethna's book.
Answers can be found here.
This week's probem set is about abrupt phase transitions and the droplet nucleation theory.
Exercises: (11.3) and (11.5) in Sethna's book.
Answers can be found here.
This week's problem is about susceptibilities, causality and fluctuation-dissipation theorem applied to the damped oscillator.
Exercise: 10.3 (Hint for (d): use a contour integral to solve for the correlation function) in Sethna's book.
This week's problem set is about correlation functions, linear response and susceptibilities.
Exercises: 10.1, 10.4 ( (a) , (b) and (d)) in Sethna's book.
Answers can be found here.
This week's problem set is about vortices, domain walls and low-frequency Goldstone modes.
Exercises: 9.1, 9.2, 9.4, 10.9 ( (a) and (b) only) in Sethna's book.
Answers can be found here.
The oblig 1 is the first of two mandatory exercises that must be passed in order to take the final exam.
Corrected solutions can be picked up at the Physics Front Office.
This week's problem set is about black-body radiation, Bose condensation, semiconductors and fermions in stellar matter.
Exercises: 7.7, 7.9, 7.12, 7.13 and 7.16 in Sethna's book.
Answers can be found here.
This week's problem set is about quantum systems of identical particles, entropy and crystal defects. Only four problems this week, 7.1 is long...
Exercises: 7.1, 7.2, 7.4 and 7.10 in Sethna's book.
Answers can be found here.
This week's problem set is about different statistical ensembles
Exercises: 6.4, 6.6, 6.9, 6.10, and 6.13 in Sethna's book.
Answers can be found here.
This week's problem set is about information entropy and the canonical ensemble (2-state systems)
Exercises: 5.12, 5.13, 5.14, 5.15, 6.2, and 6.3 in Sethna's book.
Answers can be found here.
This week's problem set is about motion in phase-space and entropy.
Exercises: 4.2, 5.4, 5.5, 5.6, and 5.7 in Sethna's book.
Answers can be found here.
This week's exercises are about the microcanonical ensemble and thermodynamics.
The exercises are 3.1, 3.2, 3.5 ,3.7, 3.9 and 3.11 from Sethna's book.
Answers can be found here.
Welcome to the blog! We are working on getting the comment fields open to everyone. In the meantime you can have a look at the post on problem set 1, which includes some fun material additional to the list of exercises from the book.
This week we focus on the diffusion equation. The exercises are 2.6, 2.7, 2.9 and 2.11 (optional) from Sethna's book.
Anwers to these exercises can be found here. Solutions will be handed out on paper.
Problem sets will normally be posted on Fridays. Problems will be solved in the tutorial session the following Friday, first time January 27.
