Sakurai & Napolitano: Quantum Mechanics

Problems from Sakurai and Napolitano’s Quantum Mechanics (2nd Edition). Note: If you are using the 1st, or revised editions, your problem numbers, and sometimes even your chapter numbers, won’t line up with mine. Read the disclaimer before use.

Solution: Sakurai 1.2

Solution: Sakurai 1.4 (parts a-c only)

Solution: Sakurai 1.5

Solution: Sakurai 1.9

Solution: Sakurai 1.13

Solution: Sakurai 1.17

Solution: Sakurai 1.19

Solution: Sakurai 1.23

Solution: Sakurai 1.24

Solution: Sakurai 1.29 (my solution is not quite correct, but it’s close)

Solution: Sakurai 1.30

Solution: Sakurai 1.33

Solution: Sakurai 2.1

Solution: Sakurai 2.3

Solution: Sakurai 2.4

Solution: Sakurai 2.5

Solution: Sakurai 2.6

Solution: Sakurai 2.8

Solution: Sakurai 2.10

Solution: Sakurai 2.12

Solution: Sakurai 2.13

Solution: Sakurai 2.14a

Solution: Sakurai 2.19 (my solution to part d is incorrect)

Solution: Sakurai 2.24

Solution: Sakurai 2.30

Solution: Sakurai 2.31

Solution: Sakurai 2.32

Solution: Sakurai 2.38

Solution: Sakurai 2.39

Solution: Sakurai 3.3

Solution: Sakurai 3.8

Solution: Sakurai 3.9

Solution: Sakurai 3.10

Solution: Sakurai 3.11

Solution: Sakurai 3.14 (my solution lacks necessary interpretation)

Solution: Sakurai 3.18

Solution: Sakurai 3.20

Solution: Sakurai 3.24

Solution: Sakurai 3.28

Solution: Sakurai 3.29

Solution: Sakurai 3.30

Solution: Sakurai 3.32

Solution: Sakurai 4.2

Solution: Sakurai 4.3

Solution: Sakurai 4.4

Solution: Sakurai 4.6

Solution: Sakurai 4.8

Solution: Sakurai 4.10

Solution: Sakurai 5.3

Solution: Sakurai 5.4 (note that I’m missing a factor of ½ in part c: x²+y² = ½((x+y)²+(x-y)² — Thanks Alireza!)

Solution: Sakurai 5.7

Solution: Sakurai 5.9 (note in part (a) that my limits of integration on the θ integrals run from 0 to 2π, but the upper limit should actually just be π. Ultimately this is inconsequential as the integral simplifies to 0 regardless, so the solution still appears to be correct. — Thanks Avik!)

Solution: Sakurai 5.20

Solution: Sakurai 5.34

Solution: Sakurai 5.40

Solution: Sakurai 5.41

Solution: Sakurai 6.2

Solution: Sakurai 6.4

Solution: Sakurai 6.5

Solution: Sakurai 6.7

Solution: Sakurai 7.2

Solution: Sakurai 7.3

Solution: Sakurai 7.6

Solution: Sakurai 7.9