Wave function Definition and 865 Threads

Have known a wave function, how get does distributing density function of the probability?

How exactly does one find a wave function? Specifically, I am asked to find the momentum space wave functoin for the nth stationary state in an infinite square well. Then I am to graph the probability density (phi sqaured) for the first and second energy levels. Lastly, I need to use the...

Hi there. We always put the time dependent part of the wave functions as e^(iwt). Of course there is a reason! but I don't know it. Can you help me? Thanks in advance. Somy :smile:

On My Last Straw Trying to Find a Wave Function I am horribly confused as how to I can actually find a wave function for any given problem. The specific wave function I am trying to find right now is that of a neutron passing through a double slit apparatus. Here is how I have the problem set...

hey who can help me with this physics problem? A particle of mass m is in the state: Ψ (x, t) = Aexp[-a(sqrt (mx^2) / h)-i (at / sqrt(m )) ] where A and a are positive real constants. a) Determine A. b) What is the frequency ƒ associated with the wave function of this particle? Explain...

I'm reading an introductionary text on quantum physics and am stumbling a bit with the terms used. The text discusses a finite potential box (one dimension, time independent). It calculates the conditions for the solutions of the wave functions, which I can follow perfectly. At that point...

Hey, We are given the 1s spatial wave function for the hydrogen atom: \psi(\vec{r}) = \frac{1}{\sqrt{a_{0}^3r}}e^{-r/a_{0} We are asked to find the momentum space wave function \phi(\vec{p}). Obviously this is just the Fourier transform of the spatial wave function. In calculating...

I have to show that if a wave function (Schrodinger) has a potential V(x) and the wave function's complex conjugate has a potential V'(x) and V(x) does not equal V'(x), this contradicts the continuity equation dp/dt + div J =0 where p=charge density, and J=current density. Can someone...

As is always my problem with physics homework, I am probably thinking to hard about this... however, I am not sure how to express this wave function! This is the question: 24) The time independent wave function of a particle is given in the graph below. The function rises linearly from the...

Hate to ask another one of these questions, but I've just read something about the collapse of the wave function that does not seem consistent with other accounts I've read about it. From what I understand, the wave function of a system is collapsed automatically by interaction with another...

please refer to the attachment. what is the physical meaning of g(k)?

You're not understading: Let me give you all my work to alleaviate any confusion. Show that A = (2/L)1/2 &psi(x) = A Sin(&pi x/L) &psi2(x) = A2 Sin2(&pi x/L) [inte]0L &psi2dx = 1 A2[inte]0L Sin2(&pi x/L) dx = 1 Actually... I forgot to resubsitute... BTW: I only use a...

I assume that some speed limit must exist that limits how often we can measure something - if is exists, perhaps the Plank time unit governs this? Do we know this answer? Does this relate to the speed of quantum computers?

I was once taught that we can calculate a small but non-zero probability for "quantum leaps" for things like atoms. I have tried to review this question within the context of gas molecules and for solids, but alas, I suspect my proficiency ends with very simple models. So first is this...

Hi, Why is that, the ground state eigenfunction in ANY quantum mechanical system is symmetric under inversion of co-ordinates?