Condensed matter physics 123A, Fall 2012, homework set 5
Instructor Prof. D. Bouwmeester
Room: 4123 Broida Hall,
email: bouwmeester@physics.ucsb.edu
Homework is due on Wednesday November 14th 5pm in the BOX.
HOMEWORK SET :
1) Study Chapter 6, Free Electro
123A Set #2 Solutions
October 15, 2012
William Kelly
Problem 3.5
a) There are two interactions to consider. The rst is the repulsive interaction which
is only appreciable for nearest neighbors
2A
Unn (r) = n ,
(1)
r
and the Coulomb potential which involve
123A Set #4 Solutions
November 1, 2012
William Kelly
Problem 5.3
a) Eq. (4.29) is
u2 =
0
4(n + 1/2)
.
V
(1)
We are considering the zero temperature limit, so n = 0 and we are only considering vacuum uctuations. Now u0 is the mean amplitude the mean displ
Condensed matter physics 123A, Fall 2012, homework set 4
Instructor Prof. D. Bouwmeester
Room: 4123 Broida Hall,
email: bouwmeester@physics.ucsb.edu
Homework is due on Friday October 26th 5pm in the BOX.
NOTE: MIDTERM: Tuesday October 30.
Material: Chapte
Condensed matter physics 123A, Fall 2012, homework set 2
Instructor Prof. D. Bouwmeester
Room: 4123 Broida Hall,
email: bouwmeester@physics.ucsb.edu
1) Study Chapter 2 of Kittel on the reciprocal lattice. Since a crystal is a periodic
structure it is natu
Condensed matter physics 123A, Fall 2012, homework set 1
Instructor Prof. D. Bouwmeester
Room: 4123 Broida Hall,
email: bouwmeester@physics.ucsb.edu
Homework is due Thursday October 4th 12:15pm in the BOX.
HOMEWORK SET 1:
1) Study Chapter 1 from Kittel In