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Unformatted text preview: k, t ) = 1 h ( x, t )eikx dx and ( x, t ) = 1 h ( k, t )e ikx dk These waves dene a particle with group velocity v g = p/m and energy E = h . The wavefunction can be interpreted as a measure for the probability P to nd a particle somewhere (Born): dP =   2 d 3 V . The expectation value f of a quantity f of a system is given by: f ( t ) = * f d 3 V , f p ( t ) = * f d 3 V p This is also written as f ( t ) =  f  . The normalizing condition for wavefunctions follows from this:  =  = 1 . 10.3 Operators in quantum physics In quantum mechanics, classical quantities are translated into operators. These operators are hermitian because their eigenvalues must be real: * 1 A 2 d 3 V = 2 ( A 1 ) * d 3 V...
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This note was uploaded on 01/30/2011 for the course PHYSICS 208 taught by Professor Ye during the Spring '10 term at Blinn College.
 Spring '10
 Ye
 Energy, Quantum Physics, Radiation

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