Question: Consider the rotation operator. i(J.n)o U = exp which rotates about an axis through an angle 9. If we rotate about z-axis by an

Consider the rotation operator. i(J.n)o U = exp which rotates about an

Consider the rotation operator. i(J.n)o U = exp which rotates about an axis through an angle 9. If we rotate about z-axis by an angle, then US,U (S is.x-component of spin angular momentum of spin- particle) is OS x .(where J is angular momentum vector and n is unit vector) 2

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