==> * Due on Thursday 10/5 in class * <==

** (1) Sakurai Problem 1.13. **

You may find it helpful to study Problem 1.9 first, although that is not a required part of this assignment.

** (2) Sakurai Problem 1.4. **

If you need a reminder on *exp(X)*,
see Sakurai p48 for its definition (*X* is an operator).

** (3) Many fermions **
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