Semester page for FYS4411 - Spring 2025

Dear all and welcome back to Comp Phys 2. 

Our plans this week are

• Markov Chain Monte Carlo and repetition from last week
• Metropolis-Hastings sampling and introducing importance sampling

Importance sampling will allow us to sample more reliably from a transition probability that mimics the physics at play. This will lead us to a discussion of what is called the Fokker-Plank equation and the Langevin equation in actual implementations of importance sampling.

We start with a top-down approach first where we present the equations we have to implement and show how to program this. Thereafter we will discuss the mathematical foundation. In the lab session we continue on implementing the variational Monte Carlo algorithm for a system of non-interacting bosons first.

To read more about Metropolis, Markov Chains, importance sampling, Fokker-Planck and Langevin equations, we recommend Becca...

Dear all, welcome back to FYS4411/9411.  Here are the plans for the lecture tomorrow.

Note first that I have changed the zoom link to my UiO address. The permanent link for the rest of the semester is 

https://uio.zoom.us/my/mortenhj

Please use this link if you cannot attend in person. 

Note also that there are no lectures 815-10. The lectures start at 1015-12 and our lab sessions follow thereafter.

You will find the lecture notes for this week at https://github.com/CompPhysics/ComputationalPhysics2/blob/gh-pages/doc/pub/week2/ipynb/week2.ipynb

The topics this week are 

Repetition from last week and discussions of code templates in python and C++

Essential ingredients: Variational Monte Carlo methods, Metropolis Algorithm, statistics and Markov Chain theory

How to structure the VMC code

Sections 3.1-3.9 of Sorella and Becca's t...

Dear all, welcome to a new semester and FYS4411/9411. 

Our first session is January 24 (this Friday) at 10.15am, room FV172 at the Department of Physics, UiO.

After the lectures we move to room F?434 for the lab sessions. Note that there is a strange error in the online schedule at the official UiO website.

There is no lecture at 815am at F?434. We have lectures from 1015am-12pm in FV172 and then move to F?434 for the lab sessions.  

All lectures will be recorded and the videos will be posted asap online here. Our first lab session follows right after the first lecture.

For those of you who cannot attend in person, the permanent zoom link is  https://msu.zoom.us/j/93770363466 (with meeting ID...

Dear all, welcome to a new semester and FYS4411/9411. 

Our first session is January 24 at 10am, room F?434 at the Department of Physics, UiO. 

All lectures will be recorded and the videos will be posted asap online here. Our first lab session follows right after the first lecture.

The link to the teaching material is at https://github.com/CompPhysics/ComputationalPhysics2/blob/gh-pages/doc/pub/week1/ipynb/week1.ipynb or as a PDF file at  https://github.com/CompPhysics/ComputationalPhysics2/blob/gh-pages/doc/pub/week1/pdf/week1.pdf

Note that for codes the jupyter-notebook is better suited than the pdf file.

 ...