scattering summary ∂α/∂q polarisability scattering theory quantum picture
TRANSCRIPT
Scattering Summary
∂α/∂q
Polarisability
Scattering Theory Quantum Picture
Raman
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Rotational Raman Spectroscopy
http://www.grc.nasa.gov/WWW/RT/2006/RT/RTB-nguyen3.html
-iħ ∂/∂q
Schrödinger Recipe
H = ½ω(p2 + q2)
The Harmonic Oscillator QM
αα
βα ββ
αβ
Spin
Double monochromater
Example
[p,q] = iħ
So p the momentum and q the coordinate of a quantum system may not be measured precisely simultanoesly
From this we deduce Heisenberg’s Uncertainty Principle
∆p∆q ~ ħ
and
∆E∆t ~ ħ
Which indicates that we can measure the energy of a molecule but when it had that energy