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Title: Good and short: really good on field momentum.
Review: I read physics books in my spare time, and what I've found are the best ones are short, good books: if they're short you stand a chance of getting through them, and then if they're good you can pick up the essentials of the subject quickly.This book is both. If you're looking for a primary textbook, you might be looking for something different, but for a reference to the concepts it's short and sweet: eg. what are canonical transformations, why are they defined the way they are and what is their importance.What's particularly mind-blowing is the 5 page discussion of field momentum. That's the qA term in the hamiltonian for a charge q in a magnetic field (vector potential A). This form of the hamiltonian always puzzled me: Calkin explains the meaning of the qA term beautifully. The book is worth getting for this alone.
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