New answers tagged probability
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How to compute marginal probabilities of Alice's qubit (in density operator language)?
Using pure states and kets, as you described, you compute the marginal probabilities by computing the squared norm of the projection on the states you're interested in. In this case, this means ...
glS♦
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How to compute marginal probabilities of Alice's qubit (in density operator language)?
Let's first see how projective measurements work in 'density operator language'.
If you perform a measurement on your density operator $\rho$, corresponding to a set of projective measurement ...
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