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I am at work today, and plan to lecture as usual 12-14

Joakim

Hi,

Yesterday, I fell and hurt my knee. Today I can barely walk around the house, and I think a miracle must happen for me to be able to teach tomorrow morning. So I think we have to cancel the lecture. It is difficult to predict for Friday, but I remain optimistic, and hope that I will be in shape to come. I will update tomorrow.

Joakim

I have now posted the results of the midterm exam. You do not get a grade, but a score (max is 120) that is counted when determining the final grade. Each question has 5 points, and you can see your score on each question.

Hi, 

As we discussed in the lecture today, it seems that all master students are invited to a meeting at 12, so it collides with our lecture. We decided to shift the lecture and do it 9:15-11 instead. All present today agreed, and I hope it does not create problems for other students. The same room as usual on Fridays (V414)

This week, on Friday 11/10, we will discuss protocols for quantum cryptography. To prepare, it is useful to understand something about classical codes, and as a challenge to you I have prepared a secret message that you can try to decrypt. Completing this task is in no way necessary for progress in the course, and is mostly for fun.

"Zvd zvpvyb lzvdc imcq dktat qkt pvmzysab ptqdttz qkt jhsccgjsh
szy omszqme yvesgz gc cgqmsqty. Evcq utth qksq trwtagetzqsh
cdgqjk ctqqgznc szy wvgzqta atsygznc sat vz qkgc cgyt. Pmq cvet
dvmhy qkgzl qkt pvmzysab ztsata, vqktac dvmhy qkgzl gq usaqkta,
szy eszb dvmhy watuta zvq qv qkgzl spvmq gq. Gz usjq, qkt esqqta
gc vu ftab hgqqht gewvaqszjt gz wasjqgjt. Qkgc gc ptjsmct vu qkt
geetzct yguutatzjt gz cjsht ptqdttz qkgznc uva dkgjk
omszqme-etjkszgjsh ytcjagwqgvz gc zmetagjshhb tcctzqgsh szy qkvct
vaygagzsaghb wtajtwqgpht pb kmesz ptgznc. Ztftaqkthtcc, qkt
evfspghgqb vu qkt pvmzysab gc vu vzhb...

In problem 2j) I gave the relation d^2S/du^2 = -dE/du. I was planning to give the integrated relation dS/du = -E. Now I updated te file, so both are there.

Two more misprints:

1: In 1e, \alpha should be the cube root, not square root

2: In 1g, the first equation should have an additional D on the right hand side.

The file on the web page is updated with a corrected version

Joakim

Hi,

There has been discovered 2 misprints in the midterm exam.

1: In question 1a the wavefunction should have the form ¦×(x) = Ae^{i?} without any \hbar

2: In question 1d, Equation (2) there were extra 'i' in the exponents in the first line. There should be one 'i' in each exponent, so that the exponent is imaginary.

I have uploaded an updated file on the webpage, but not yet on Inspera (I will send the updated file to the responsible person, but I can not change it myself).

I have now posted the problems for the midterm exam (they should also appear in Inspera shortly). The solutions are to be delivered in Inspera by friday 4/10 at 14:00. Handwritten solutions are fully accepted, and solutions can be written in Norwegian or English as you prefer. If there are unclear points, or you suspect there are misprints in the text (there likely is), send me an email.

Joakim

Hey everybody! Since you will probably want to work hard on the midterms next week, there will be a group session on the 1. October. Feel free to come and work, and to ask any questions.

Same place, same time. :)

Good luck on your midterms! 

- Jan

Du to collision of lectures, there was a wish to exchange the times for the Tuesday lectures and the problem solving. This means that starting next week, we will do problem solving Tuesdays 10-12 and lectures Fridays 12-14. Both activities will be in room FV414, at least for the moment, and we will see if this works well. This applies even if this is not stated in the timetable and our calendar (I will ask this to be changed, but I do not have access to do it directly).

As the problem solving will now come before the lectures of that week, we expect to shift the problems gradually, so that the problems will be discussed the week after the lectures on the same topic. For next week, I think you can still do problems 2.1-2.3 as they do not require more than we covered in the lectures so far. 2.4 I think you might have seen the tools for in previous courses, so it could be attempted. The last two, I suggest to to delay until the week after.

We will try thi...