2
votes
quantum generalisation of random variables
If I understand your question, the way a classical random variable $X$ with support $\left[2^n\right]=\left\{0,\cdots,2^n-1\right\}$ is represented in quantum information is via a diagonal density ...
- 5,354
1
vote
Is there a general method for calculating expectation values for time-dependent wavefunctions?
I won't give the final answer (close to it), but instead try and point you in the general direction.
Initial State: The given initial state is $ | \psi(t=0) \rangle = | 0 \rangle $.
Pauli X Matrix: ...
- 757
1
vote
Accepted
How to know what eigenvalue corresponds to measurements of individual qubits in a multiqubit system?
If you consider the state
$$\Omega_- = \frac{1}{\sqrt{2}}(|00\rangle + |11\rangle).\tag{1}$$
you will find that there is NO violation. Let me show this. Note that the approach I will use for solving ...
- 126
1
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How to know what eigenvalue corresponds to measurements of individual qubits in a multiqubit system?
From your current description, it seems that you have found each eigenvector $\{|v_1\rangle,...,|v_4\rangle\}$ and its associated eigenvalue $\lambda_1,...,\lambda_4$. These eigenvalues represent the ...
- 93
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