Flashcards in Week 9 Infinite Square Well & Momentum Deck (10)
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1
describe the infinite square well scenario
a particle is restricted to a region between 0 and L and only travels in one direction
2
what can be observed of a particle with definite energy in this square well
it's Ψ is confined to exact discrete values
3
what is the normalisation for Ψ when restricted to a region of length L
Ψ(n) = Asin(nπx/L)
A is some complex number
4
what does the wave function tell us about a particle for quantum physics
everything we need to know allowing us to calculate all properties of the particle
5
what are the two p related equations that involved interchanging h with ħ
p = ħk
p = h/λ
6
define the differential operator for momentum
p(hat) = ih(bar) d/dx
7
what is the equation relating p and p(hat)
pΨ = p(hat)Ψ
8
what is the uncertainty is momentum equation
Δp = sqrt[

^2 ]
9
what is the Heisenberg Uncertainty principle equation and what is the important condition
ΔxΔp = αh(bar) / 2
α >= 1
10