Semester page for FYS4480 - Autumn 2024

Dear all, welcome back to FYS4480.

This week the plans are to 

Thursday:

1. Efficient ways of implementing the Hartree-Fock algorithm,

2. Thouless' theorem and stability of Hartree-Fock equations

Friday:

1. Stability of Hartree-Fock equations and Thouless' theorem

2. The homogeneous electron gas in three dimensions

3. Lecture Material: slides and notes at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/pub/week40/ipynb/week40.ipynbLinks to an external site. and Szabo and Ostlund, sections 3.1-3.4

4. Seventh exercise set at ...

Dear all and welcome back to a new week with FYS4480/9480. The plans this week are 

Thursday:

• Discussion of Full configuration interaction (FCI) theory
• Diagrammatic representation of FCI
• Lipkin model as an example of applications of FCI theory
• Start Hartree-Fock theory                                                                                                                                               &...

Dear all, the plans this week entail

a. Thursday: Discussion of particle-hole formalism with examples and diagrammatic representation. Start discussion of full configuration interaction theory
b. Friday: Full configuration interaction theory

Lecture Material: These slides and chapters 3 and 4 of Shavitt and Bartlett covers most of the material discussed this week. The slides this week are at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/pub/week38/pdf/week38.pdf

Fifth exercise set at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/Exercises/2023/ExercisesWeek38.pdf

The solutions to the exercise set from last week can be found at https://github.com/CompPhysics/QuantumComputingMachineLearning/blob/gh-pages/doc/pub/week8/ipynb/week8.ipynb

A note on the exercise sessions scheduled for each Friday at 1215pm-2pm: since nobody has showed up the last three times, we decided to offer these se...

Dear all, welcome back to FYS4480/9480.

This week we will use the lecture on Thursday to summarize our discussions on Wick's theorem, with examples and discussions of the exercise set this week.

On Friday we will introduce a new reference vacuum state and the so-called particle-hole formalism, widely used in condensed matter physics, materials science, quantum chemistry and nuclear physics.

For Wick's theorem, chapters 3 and 4 of Shavitt and Bartlett is an ok read. idem for the particle-hole formalism.

Lecture Material: slides from https://manybodyphysics.github.io/FYS4480/doc/pub/week37/pdf/week37.pdf.

Fourth exercise set at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/Exercises/2024/ExercisesWeek37.pdf

The solution to the exercises from week 36 are at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/Exercises/2024/AnswersWeek36.pdf

Best wishes to you all,

Morten and Ruben

Dear all, welcome back to FYS4480/9480.

* Topics to be covered

  o Thursday: Second quantization, operators in second quantization and diagrammatic representation

  o Friday: Second quantization and Wick's theorem

* Lecture Material: slides from https://manybodyphysics.github.io/FYS4480/doc/pub/week36/pdf/week36.pdf, handwritten notes and Szabo and Ostlund sections 2.3 and 2.4. The material on Wick's theorem is covered by the whiteboard notes to be discussed on Friday.

* Third exercise set at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/Exercises/2024/ExercisesWeek36.pdf

The solution to the exercises from week 35 are at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/Exercises/2024/AnswersWeek35.pdf

Best wishes to you all,

Morten and Ruben

Dear all, we hope this week started the best possible for all of you.

Here are some updates for this week (week 35).  On Thursday we plan to finalize the calculations of expectation values for fermionic systems. Parts of this material is covered by the lectures from last week, see for example the slides from last week at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/pub/week34/pdf/week34.pdf (from slide 68, Ground state energy as header).

Thereafter (Friday most likely), we move into our first encounter of second quantization. The material is covered by this week's slides at for example https://manybodyphysics.github.io/FYS4480/doc/pub/week35/html/week35-bs.html or as a pdf file at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/pub/week35/pdf/week35.pdf

Our second exercise set, to be discussed on Friday is available at https://github.com/ManyBodyPhysics/FYS4480/blob/master/doc/Exercises/2023/Exercises...

Dear all, a warm welcome to everybody. 

Our first lecture is Thursday August 22 at 1015am in room F?434 in the Physics building. All lectures will be recorded and if you cannot attend physically, the zoom link is

https://msu.zoom.us/j/97773954122?pwd=6f3GES17tnZudZjzDQ8O5gUJnXyG0K.1

Meeting ID: 977 7395 4122
Passcode: 583107

All educational material pertinent to the course is at 

https://github.com/ManyBodyPhysics/FYS4480

and this week's material is at 

https://github.com/ManyBodyPhysics/FYS4480/tree/master/doc/pub/week34

We look much forward to meet you all, best wishes

Morten and Ruben