Density matrix

  • Thread starter cscott
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Homework Statement



Suppose a source emits silver atoms, which are sent through
three different types of Stern-Gerlach devices, each of them is either sorting
the atoms along the x, y or z axis. If we preform a measurement along the
z or y axis, the atoms are sorted in the ” + ” direction with probability 3/8,
while if we sort along the x axis, the ” + ” direction occurs with probability
3/4.

Find the density operator of this source



Can someone help me get started? How do I find out what the source is composed of?
 

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