Done with the lectures

At the end of the lectures the grad students saw the formulae I derived in the course fit onto recent experimental data!

and now? it is time for designing assignment in grad scales...

Lecture 3.pdf
Lecture 4.pdf
Comparing theory with experiments

 More about te course available at the course homepage.

2nd lecture on nanowire theory at IQC

2nd lecture was joyful and full of my simple derivations.

I talked about two fluid model of Gorter and Casimir and derived many interesting things including the temperature dependence of penetration depth. Then derived deviations of penetration depth from that of London in non-local type II pure superconductors.  After that I derived penetration depth for thin film for the two cases of parallel and perpendicular magnetic fields.   A little touch on Ginzburg-Landau theory and derived their equation, then talked about the physical meaning of parameters.

Students (and postdocs) were happy and had plenty of high quality questions. They are very sharp! Looking forward for the 3rd lecture on Monday!

Lecture note 2.pdf

First lecture at IQC

The first lecture on nanowire theory at IQC went unexpectedly well today!

The title of the course is rather long: "Superconducting and Semiconducting nanowires and Low Energy Physics." This is a module out of 10 modules for a quantum information theory course accessible to graduate students of physics, computer science, and electrical engineering.  The list of other modules are here.

In the first lecture, I discussed two-fluid model, London equations, and Boltzmann equation and using them I derived coherence length and the magnetic penetration depth with and without non-locality effect, and in pure and dirty bulk superconductors. Most of the derivations were made by myself in a radically simple way with (or perhaps without) minimal confusions for students.

I am looking forward to the second lecture, which should be a lot of fun!

Lecture note 1.pdf