Using the ortho normality of ) and , prove Si, Sj iijkhSk, Si, Sj (h2 2) ij, where Sx h 2 ( ),Sy ih 2 ( , Sz h 2 ( ) ...

0 The orthonormality property is 1 Hence ...

Using the ortho normality of | +) and | - >, prove [Si, Sj] = iijkhSk, {Si,

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Using the ortho normality of | +) and | - >, prove [Si, Sj] = iεijkhSk, {Si, Sj} = (h2/2) δij, where Sx = h/2 (| +> < – | + |– > < + –),Sy = ih/2 (– | + > < – | + | – > < + |>,

Sz = h/2 (| +> < +| – | – > < –|).

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Modern Quantum Mechanics

ISBN: 978-0201539295

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Authors: J.J Sakurai

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Question Posted: Apr 16, 2011 06:41 AM

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Using the ortho normality of | +) and | - >, prove [Si, Sj] = iijkhSk, {Si,

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Modern Quantum Mechanics

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