Recent content by Heimisson

I'm doing a computational physics project where I'm looking at the Ising model in 2D and external magnetics field. I start with all the spins in same directions my grid is 30x30 and I use periodic boundary conditions. I start with all the spins in the same direction (+1). I do about 150000...

I do not know a lot about quantum computers, but I understand that that the very first of them are just an engineering problem now. But these computers nowhere near being something the average joe can buy. So I would think that at this point in time if you are interested in quantum computers...

Getting rid of the perfectionism is really a tricky thing. I have learned to control in many ways the thoughts that cause the anxiety. Like thinking about failure. But it's a constant battle because the idea that it's alright to fail sometimes or even just be average is something I find...

Hi, I was hoping for just about any advice in my situation, to gain some perspective. I'm now on my last year of bachelors degree in physics and I feel that I'm loosing interest in studying physics anymore. This begin when I started therapy for an anxiety disorder. The therapy has been...

I understand the ifort is free for Linux, and also "not very expensive" for OSX if you know where to look...

I use Ifort, it works well and pretty easy to install if I remember correctly.

Thanks this sounds sensible.

I'm using IFORT

Hey, I'm trying to write my very first Fortran program. I'm a physics student and I don't know a lot about computer science and since I'm new to Fortran I'm still having problems with finding answers to my questions on my own. So..please bear with me. I'm doing heavy numerical calculations...

Thank you so much! This is a cool method of doing numerical integrations, I wonder why they didn't teach this in my numerical analysis class.

I need to use this on a integral of two dimensions x and x'. But I figured that I would just use it first on x and then look at that result as a function of x' and use it again. I don't really care for a theoretical derivation I just want the formula. I'm trying to calculate the kernel of a...

I need to use the four-point Gaussian quadrature rule to do some intense numerical calculations. Could anyone link to this page where it's written out explicitly over an [a,b] interval. I haven't been able to find it, I'm trying to derive it now but it's crucial that I'm 100% correct. I haven't...

I actually just realized how this might work, but please leave an reply if you have an better idea or I'm wrong.

Homework Statement This is not so much a homework problem but a part of a project I'm working on. So in just a few words; what I have (at time t=0) is a discrete state (half simple harmonic oscillator) connected to a wire with continuous states. These states are coupled by a complex...

Homework Statement A particle with spin 1/2 and magnetic moment is in a magnetic field B=B_0(1,1,0). At time t=0 the particle has the spin 1/2 \hbar in the z direction. i) Write the hamiltonian with respect to the basis that is defined by the eigenvectors of \widehat{S}_z Homework...