Transcription of Quantum Mechanical Operators and Their Commutation …
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CHAPTER 1 Quantum Mechanics I 29 Copyright Mandeep Dalal Quantum Mechanical Operators and Their Commutation RelationsAn operator may be simply defined as a mathematical procedure or instruction which is carried out over a function to yield another function. (Operator) . (Function) = (Another function) (67) The function used on the left-hand side of the equation (67) is called as the operand the function over which the operation is actually carried out. The operator alone has no significance but when operated over a certain mathematical description, these Operators can provide very detailed insights into those functions. Some of the simple illustrations of equation (67) are given below. i) Consider the differential operator d/dx whose operation has to be studied over the function y = x5.
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