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Unformatted text preview: • The associative law holds for operators (39) • • The commutative law does not generally hold for operators. In general, . It is convenient to define the quantity (40) • • which is called the commutator of and . Note that the order matters, so that . If and happen to commute, then . • The nth power of an operator is defined as successive applications of the operator, e.g. (41) • • The exponential of an operator is defined via the power series (42)...
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This note was uploaded on 11/22/2011 for the course CHEMISTRY CHM1025 taught by Professor Laurachoudry during the Fall '10 term at Broward College.
 Fall '10
 LauraChoudry
 Chemistry

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