Quantum Computing
GaussStrife
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6
Interpretation of the unitaries involved in the eigenvalue decomposition of a density operator
Sep 15
5
How can the Holevo bound be used to show that $n$ qubits cannot transmit more than $n$ classical bits?
Aug 1 '20
4
How to derive $|0\rangle=\frac{1}{\sqrt{2}}(|+\rangle+|-\rangle)$?
Jul 29
4
Partial Trace of Werner State
Dec 20 '20
3
If $\rho,\sigma$ are classical-quantum states, can the fidelity $F(\rho,\sigma)$ be expressed in terms of $F(\rho_i,\sigma_i)$?
Jun 15
3
Why is a conjugate transpose of $|+\rangle$ a vector $1/\sqrt{2} (\langle0| + \langle1|)$?
Sep 30 '20
3
Circuit to construct a $n$-qubit state which is a superposition of states with only a single qubit being $\lvert1\rangle$ [duplicate]
Nov 2 '18
2
Showing that $S(\rho_{XB}||\sigma_{XB})=\sum_{x}p(x)D(\rho_{B}^{x}||\sigma_{B}^{x})$ for classical-quantum states
Sep 22
2
What can be said about the non-negativity of the relative entropy of $S(\rho_{AB}||\rho_{B})$?
Aug 27
2
How does $F(\psi, \phi) = [\sum_{x}\sqrt{p(x)q(x)}]^{2}$ [duplicate]
May 17

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