Hydrogen Energy Levels -20 -10 10 20 -2 -4 -6 -8 -10 -12 - - PowerPoint PPT Presentation

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Hydrogen Energy Levels -20 -10 10 20 -2 -4 -6 -8 -10 -12 - - PowerPoint PPT Presentation

Hydrogen Energy Levels -20 -10 10 20 -2 -4 -6 -8 -10 -12 -14 hydrogen wavefunctions 5 10 15 20 -2 -4 -6 -8 -10 -12 -14 n=3 1 0.5 5 10 15 20 25 30 -0.5 -1 -1.5 -2 -2.5 -3 100 200 210 211 300 310 311 320


slide-1
SLIDE 1

Hydrogen Energy Levels

  • 20
  • 10

10 20

  • 14
  • 12
  • 10
  • 8
  • 6
  • 4
  • 2
slide-2
SLIDE 2

hydrogen wavefunctions

5 10 15 20

  • 14
  • 12
  • 10
  • 8
  • 6
  • 4
  • 2
slide-3
SLIDE 3

n=3

5 10 15 20 25 30

  • 3
  • 2.5
  • 2
  • 1.5
  • 1
  • 0.5

0.5 1

slide-4
SLIDE 4

100

slide-5
SLIDE 5

200

slide-6
SLIDE 6

210

slide-7
SLIDE 7

211

slide-8
SLIDE 8

300

slide-9
SLIDE 9

310

slide-10
SLIDE 10

311

slide-11
SLIDE 11

320

slide-12
SLIDE 12

321

slide-13
SLIDE 13

322

slide-14
SLIDE 14

Lyman forest α

slide-15
SLIDE 15

Angular Momentum

  • L =

r × p Lx = ypz − zpy, Ly = zpx − xpz, Lz = xpy − ypx px →

i ∂ ∂x

py →

i ∂ ∂y

pz →

i ∂ ∂z

[Lx, Ly] = [ypz − zpy, zpx − xpz] = [ypz, zpx] − [ypz, xpz] − [zpy, zpx] + [zpy, xpz] = ypx [pz, z] + pyx [z, pz] = i (xpy − ypx) = i Lz [Ly, Lz] = i Lx, [Lz, Lx] = i Ly

slide-16
SLIDE 16

Angular Momentum

  • L ·

L = L2 = L2

x + L2 y + L2 z

  • L2, Lx
  • =
  • L2

x, Lx

  • +
  • L2

y, Lx

  • +
  • L2

z, Lx

  • =

Ly [Ly, Lx] + [Ly, Lx] Ly +Lz [Lz, Lx] + [Lz, Lx] Lz = Ly (−iLz) + (−iLz) Ly +Lz (iLy) + (iLy) Lz =

  • L2, Ly
  • = 0,
  • L2, Lz
  • = 0
  • L2,

L

  • = 0

[AB, C] = ABC − CAB = ABC − ACB + ACB − CAB = A[B, C] + [A, C]B