(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

given A(k)=N/(k^{2}+a^{2}) calculate psi(x) and show that

(delta k * delta x) > 1

independent of the choice of a

3. The attempt at a solution

I calculated psi(x) to be (N*pi/a)*e^{-|ax|}

Would it be ok to compute <x> and <x^{2}> in coordinate space and <k> and <k^{2}> in momentum space (which gives me simple multiplication for all my operators) and then find (delta x * delta k) using

delta x = sqrt(<(x-<x>)>) and delta k = sqrt(<(k-<k>)>) ?

do i have to transform anything before I do this? How would I do that?

Thank you

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Coordinate space and momentum space

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

**Physics Forums | Science Articles, Homework Help, Discussion**