Recent content by Swatch

I see. Thanks

Homework Statement A Spherical potential which is 0 for 0<r<a Vo for r>a Find the condition for bound states, for the radial function with l=0 Plot the result.The Attempt at a Solution I have gotten the equation - tan(ka)=k/lambda where k is the wavenumber for the wave inside the well and...

Homework Statement An electron is in an applied magnetic field. This electron is then radiated with microwave radiation which is at the correct larmor frequency. Homework Equations 1) Does the electron absorb microwave radiation when the applied microwave radiation induces a spin flip...

Thank you all for your help:smile:

I think I understand this. since the overlap of \lambda and the vacuum is zero and also the overlap with the one, two and so one particle functions is zero, \lambda must be zero. Am I right?

I believe the overlap of |\lambda> with the one particle state to be zero

The overlap with the vacuum is zero but how does this help me?:confused:

What is their overlap with vaccum? I don't understand!

Homework Statement The problem is to find the eigenkets for the creation operator ,a^{\dagger} if they exist Homework Equations a^{\dagger}|\Psi>=\lambda|\Psi> a^{\dagger}=\frac{1}{\sqrt{2*\hbar*m*\omega}}*(-\hbar*\frac{d}{dx}+m*\omega*x) The Attempt at a Solution I use the...

An electron has its spin vector pointing in the positive x-direction and a magnetic field vector is turned on in the positive z-direction. Question 1. Does the spin vector turn to the positive z-direction and start to precess around the z-axis? Or does is precess around the x-axis...

it is (n*PI)/L ,where 2L is one period which I just treat as a constant

I am trying to solve this Fourier problem where I have to integrate ∫f(x) * exp(-i§x) dx from -∞ to ∞ , where f(x) = exp(-sgn(x)) I tried breaking the function into two pieces where x is from -∞ to 0 and from 0 to ∞ where f(x) would then be exp(x) and exp(-x) and integrating two functions...

I understand this better now. Thanks

There is an example in my textbook which I´m having trouble with. The example is like this. " Find the area of the finite plane region bounded by the four parabolas, y=x^2 , y=2x^2 , x=y^2 , and x=3y^2 The region is called D. Let u=y/x^2 and v=x/y^2 The the region D corresponds to...

Hi. I have been trying to find the MO diagram for BrF5 since it is not in my textbook. I have been searching the web, and Google but I haven't been able to find anything, if someone knows of a MO diagram on the web I would be thankful If you would tell me where to find it.