Recent content by Kiarash

I am applying to an undergraduate summer school. I should write a CV, but I do not know how should I write it. I would be happy if anyone can help me with the same experience. Thanks.

@Fredrik Thank you for your reply. log[Ω] can only take discrete values; so it is ambiguous what is its derivative. I mean there is infinitely many functions that have the same values as Ω has, but they have different derivative. What does it mean when we differentiate log[Ω]; it is not trivial.

Consider a system with countable quantum states. One can define Jij as the rate of transition of probability from i-th to j-th quantum state. In H-theorem, if one assumes both $$ H:=\Sigma_{i} p_{i}log(p_{i})$$ $$J_{ij}=J_{ji}$$ then they can prove the H always decrease. The latter is Fermi's...

Temperature of a system is defined as $$\left( \frac{\partial \ln(\Omega)}{ \partial E} \right)_{N, X_i} = \frac{1}{kT}$$Where Ω is the number of all accessible states (ways) for the system. Ω can only take discrete values. What does this mean from a mathematical perspective? Many people say we...

I really appreciate! That works. Good luck.

Hi, First of all, notice that the Rung-Lenz Vector could be written by velocity of the particle, because momentum divided my mass is equal to velocity, and K is a constant. Obviously, it is necessary to know initial conditions of the particle, so assume that we know the initial distance and...

Thank you for your answer! I still have a problem. Do you know a book, reference, or website for looking up? Or else, could you please make an example? For instance, for Aluminum, Iron, or Copper; how can I found a nearest distance between two molecules of them? Thanks for your patient!

Hi everyone! I am researching on Metals Work functions, and I need a table of distances between molecules! I searched on the web almost a week, but I didn't found at least A table. Please help me! If it is in a book, tell me the name of the book, or tell me where can I find it. Any help would...