Find Particle Given Wavefunction: Probability Amplitude & Exponential Decay

  • Thread starter Thread starter stunner5000pt
  • Start date Start date
  • Tags Tags
    Particle
stunner5000pt
Messages
1,443
Reaction score
4

Homework Statement


Where is the particle most likely to be found given the wavefunction in the diagram
Also the wavefunction decays exponentially as x goes to infinty

Homework Equations


well the wavefunction is the probability amplitude
the square modulus of the wavefunction gives the probability desnity
and the square modulus times delta x gives the probability of finidng a particle bewtween x and x + delta x


The Attempt at a Solution


i think it is most likely to be fond where the probability amplitude is maximum because at those regions the particle has maximum proabiltiy of being found

is this correct??

thanks for your help!
 

Attachments

  • 1.JPG
    1.JPG
    10 KB · Views: 423
Physics news on Phys.org
stunner5000pt said:

Homework Statement


Where is the particle most likely to be found given the wavefunction in the diagram
Also the wavefunction decays exponentially as x goes to infinty

Homework Equations


well the wavefunction is the probability amplitude
the square modulus of the wavefunction gives the probability desnity
and the square modulus times delta x gives the probability of finidng a particle bewtween x and x + delta x


The Attempt at a Solution


i think it is most likely to be fond where the probability amplitude is maximum because at those regions the particle has maximum proabiltiy of being found

is this correct??

thanks for your help!

Yes

In 3-D you do have to be careful with radial wave funcions. The usual thing is to plot rR(r) because R(r) itself is not sufficient to find the most likely r. That's bcause a particle can be found at one value of r and be anywhere in a shell of radius r and thickness dr. The volume of the shell increases in proportion to the area of a sphere, or as r²
 
Hi, I had an exam and I completely messed up a problem. Especially one part which was necessary for the rest of the problem. Basically, I have a wormhole metric: $$(ds)^2 = -(dt)^2 + (dr)^2 + (r^2 + b^2)( (d\theta)^2 + sin^2 \theta (d\phi)^2 )$$ Where ##b=1## with an orbit only in the equatorial plane. We also know from the question that the orbit must satisfy this relationship: $$\varepsilon = \frac{1}{2} (\frac{dr}{d\tau})^2 + V_{eff}(r)$$ Ultimately, I was tasked to find the initial...
The value of H equals ## 10^{3}## in natural units, According to : https://en.wikipedia.org/wiki/Natural_units, ## t \sim 10^{-21} sec = 10^{21} Hz ##, and since ## \text{GeV} \sim 10^{24} \text{Hz } ##, ## GeV \sim 10^{24} \times 10^{-21} = 10^3 ## in natural units. So is this conversion correct? Also in the above formula, can I convert H to that natural units , since it’s a constant, while keeping k in Hz ?
Back
Top