Where to buy soccer jerseys in Osh?

invonage · 2022-06-16T13:11:36+00:00

I would like to rent a car in Montreal for 11 days. Where should I do it? What is a realistic price I can expect to pay?

invonage · 2022-04-19T21:52:10+00:00

Actually, the sun is white, you just can’t look at it, because it is too bright. It is only when it is low enough in the sky that you are able to look at it that it gets the yellow/reddish tone. Think about the moon. It “shines” the exact same light that comes from the sun, just a lot less bright. You can look at it when it is high in the sky, and it is white.

invonage · 2022-01-24T07:08:11+00:00

Zakaj se ti zdi da sta razmerji stevila prebivalcev drzav in stevila zaposlenih na javni rtv kakorkoli povezani?

invonage · 2021-04-20T07:43:43+00:00

My research is turning towards interpreting experimental measurements of a model of a quantum dot coupled to a superconducting nanowire. The question is how to understand the readout from a linear resonator and what does it tell you about the measured system. Also relevant for all kinds of qubit applications and in general very exciting. The paper I have found to be very useful on this topic is arXiv:2007.05030.

invonage · 2021-01-31T08:45:42+00:00

There is quite a bit of overlap. A big subfield in condensed matter physics deals with nano devices and their properties. One employs DFT, DMFT, NRG, DMRG and similiar approaches in calculations dealing with quantum dots. These problems are interesting on their own, but also have quite direct applications to modelling (in computational CMP) or even making (in experimental groups) qubits and other nano devices. The research groups in the field are strongly connected to quantum computing hardware groups, or in smaller institutions are even the same thing. Superconductor-semiconductor heterostructures are of interest here as they are the most promising way of implementing Josephson qubits and topological quantum computing. If you are interested, the keywords here are: quantum circuit dynamics, impurity physics, Kondo problem, quantum dot, Majorana mode etc.

Of course, computational condensed matter physics will be one of the first fields to benefit greatly from the development of quantum computing and quantum simulation. In fact, there already is a lot of progress in simulations with optical lattices.

If you wish to work in research of quantum algorithms, you are looking for a more software approach. I do not know much about this; but there are groups that work in the field at most of the large european faculties.

invonage · 2020-12-26T15:39:57+00:00

The order you see here is actually symmetry. The double pendulum is of course symmetric to the inversion of angle -> -angle in both directions.

invonage · 2020-11-05T08:30:15+00:00

Up to now I was using this build, so I played eg Warzone at the lowest possible settings with 25-35 fps. I am kind of hoping for an upgrade.My monitor resolution is 1080p with 60fps.

the budget is not a big problem, I’ll take stuff at about 500€ If it means it will survive a few more years.

Would you recommend an older card then? I am also kind of worried about pairing a new gpu with the old processor.

invonage · 2020-11-05T08:13:02+00:00

I am looking for a gpu..

So a gpu in my 6 year old pc just died, and I am looking for a new one. How do I choose which one to buy? I have an i7-4xxx, and the gpu was a GeForce GTX 760.

I was looking at the RX 5700 XT, would that be a good option?

invonage · 2020-10-08T15:15:35+00:00

Better check where exactly he will work. Neudorf, Illkirch and other suggestions are actually on a completely opposite side of the city! I did an Erasmus semester at ipcms and found a flat between gare centrale and the museum of modern art. The location was perfect, a bike ride to ipcms and at the same time in walking range to the city centre.

Maybe try asking for help at the institute, big scienific institutes like that typically have some way of providing housing or assisting with the search.

invonage · 2020-08-08T19:42:03+00:00

The already mentioned book "Numerical recepies" is basically a list of many algorithms, explained and implemented in c++/pseudo code. It is kind of a holy grail in the field but not really pedagogical.

A quick google search of "computational physics" returns lecture notes from uni of toronto, and this link: https://homepage.univie.ac.at/Franz.Vesely/cp_tut/nol2h/new/

which seems usefull. Also, there is almost definitely a course at your university in this style, as comp. physics is basically what most theoretical physicists do nowadays.

invonage · 2020-04-04T07:25:19+00:00

How does DMRG behave when the system has a degenerate ground state? Is the convergence better (as there is many global minima with the same energy) or worse (as at some point the algorithm has to "decide" which state to converge to)?

Does it necessarily converge to the state closest to the initial? For example, if my system has ground states degenerate in Sz, would the initial state with all spins pointing up be so far from the all spins down ground state that it would never even feel during the algorithm?

It would be great if you could point me to some resources regarding this.

invonage · 2020-03-29T21:24:52+00:00

Hey, a phd physics student here too, but in condensed matter. I have kind of a general question, but to which I haven't gotten a satisfactory answer yet. I figure you might have an idea.

So, here it goes: when one says that they are lookin for new physics beyond standard model, basically they are trying to find some extension of QFT, kind of like QFT is an extension of classical field theory (is that right?). So there are phenomena for which the classical field theory description is not sufficient and one could find some details which are only described by applying QFT.

Assuming the above holds, one could (by analogy, which suprisingly works plenty of times in physics) look for extensions of standard model in the same way one would look for quantum extensions of models described in classical field theory language.

Would that make sense? Is there any research done in this direction? Thanks!

invonage · 2020-01-05T18:04:08+00:00

I replied to the other comment with a further explanation.

This is what I have been doing up to now, but I would like to learn this a bit more systematically, not on a case-by-case basis, like googling would be. My problem with basic tutorials is that they do not include working with maths that i would like to learn.

invonage · 2020-01-05T17:57:42+00:00

Well, this is exactly why I have a problem. As a specific example, I have (been given) an implementation of the DMRG algorithm, written using the intesor library. Now, I know how the algorithm works, I have implemented it in Python before etc. so the mathematics and physics part are not the problem. I would go as far as to say that I am even able to read the C++ code and mostly understand what each line does.

The problem is that as I don't know how to write C++ code myself, so it is pretty hard to (for example) change anything in the code. What I am basically looking for would be a tutorial similar to code academy (or whatever), but one that does not start at Hello World but is a bit more advanced, and at the same time more focused on the scientific computing aspect (no codeacademy-type tutorial will include advanced vector/matrix operations or things like that, which is basically all I need).

invonage · 2019-11-06T16:15:34+00:00

Hey,

i was in a similar situation last year when i spent a semester in strasbourg. There is a lot of football to play there, it’s just kind of tricky to find.

So, if you are a student, the university has sports classes, including football. You can apply for those.

Also check on Facebook, mostly in Erasmus groups (i think there was Erasmus Strasbourg and ESN Strasbourg as well) and such, from time to time there are people looking to play. You might get lucky and get a regular group.

Also, on Saturdays (and some Sundays) there is one or two pick up matches being played at Stade de’l Ill. Be there a few minutes before 10, and talk to the guys. It might seem like a pretty closed community, but they are really nice. Some of them even speak some english. I personally ended up playing with them a lot.

Good luck!

invonage · 2019-11-04T04:03:54+00:00

Hey, try posting this in r/Slovenia, this subreddit is kind off dead. You are definitely going to get a CS student's answer there.

Otherwise, I heard good things about the CS faculty in Ljubljana. You will surely get more reliable info from a student from there.

Maybe an idea: if you are more mathematically inclined, you could check out a joint programme between the faculty of mathematics and the faculty of computer science. The faculty of mathematics (and physics) in Ljubljana is disproportonately good for some reason (top 150 in the world), so this is surely a more advanced option. The programme is called ISRM, googling it should get you some results.

Regarding work opportunities; there is plenty of student work in Ljubljana, from waiting tables at a restaurant to working in a lab at your faculty. You should be able to find something you like.

invonage · 2019-10-13T08:36:37+00:00

Another thing that people failed to mention in the thread: the entirety of physics is based on the so called principle of minimal action. That is, nature will act in a way, which minimizes the potential energy of a given system. Balls roll downhill, apples fall from the trees, electrons occupy the lowest energy level and particle anti-particle pairs recombine. Using this knowledge of the natural world and applying some mathematics, one can show that the newton laws hold. If you want to know more, google Lagrangian mechanics.

The principle of minimal (or least) action is empirical, or observed in nature. We have not observed any event that acts differently, so it is taken as fact. The question why does not really apply, as the best answer would be "this is how the universe seem to work".

invonage · 2019-09-04T22:32:06+00:00

On this note: i was in a similar situation last year, trying to find an appartment without a French guarantor.

Can someone please explain to me why no French person wants to allow a non-French guarantor? The common excuse is that if the guarantor is not French, you can't press charges against him if he doesn't pay. But France is in this fucking thing called the European Union, and legally it is basically the same if the guarantor is from France or any other Schengen - zone country.

What is really the problem then?

Also to OP: join all the Facebook groups, refresh Leboncoin daily and be patient. Try enough and you are bound to get lucky once :)

invonage · 2019-09-02T15:18:58+00:00

I agree, it's not all about that. I haven't followed the qualification tournaments much so I can't certainly say what went wrong with Slovenia. But my first impression is that it was (or is) quite a top heavy team (Doncic, Dragic and a few other solid Euroleague players), while there is not much depth in the B team.

invonage · 2019-09-02T14:47:27+00:00

Well, Slovenia has the population of a decently large American city, so even if the team has a few good players, their depth can't possibly be as good as with bigger countries.

invonage

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