Fermions: Electrons in metals and white dwarf stars


Postscript files of slides (4 per A4 page)

Table of contents

Fermions: Electrons in metals and white dwarf stars

Electrons in a box

Find the mean number of particles per state, f(E)

Find the density of states, g(E)

Slide 5

Slide 6

Slide 7

Find the number of particles per unit energy at E, n(E)

Normalization and the Fermi energy

Slide 10

Slide 11

Degenerate Fermion Gases

Chemical potential, Ü

Properties of metal

Typical values of the Fermi energy

High electron energies

Pressure due to a degenerate Fermion gas of electrons

Slide 18

Slide 19

Slide 20

Electron pressure in WD stars (qualitative)

Slide 22

White Dwarfs

Slide 24

Slide 25

Slide 26

Pressure due to degenerate electron gas

Slide 28

Slide 29

Slide 30

Typical properties of WD stars

Neutron stars

Slide 33

Slide 34

Slide 35

The equation of state of NS

Slide 37

Slide 38

Slide 39

Author: Tim Harries

E-mail: th@star.ucl.ac.uk

Homepage: http://www.star.ucl.ac.uk/~th/

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