### Questions (15)

 7 Estimate/determine Bures separability probabilities making use of corresponding Hilbert-Schmidt probabilities 4 Give an explicit example of a $d = 4$ SIC-POVM 4 Explicit 16⨯16 matrix representations of two-qudit entanglement witnesses 4 Suggest, partly based upon limited numerical results, possible “elegant” exact formulas for Bures two-qubit separability probability 3 Is the Hilbert-Schmidt probability simply zero that a generic rank-2 two-qubit (“pseudo-pure”) density matrix is separable?

### Reputation (671)

 +20 Give an explicit derivation of the exact formula for the two-qubit absolute separability Hilbert-Schmidt probability $\approx 0.00365826$ +10 Give an explicit derivation of the exact formula for the two-qubit absolute separability Hilbert-Schmidt probability $\approx 0.00365826$ +10 Give an explicit example of a $d = 4$ SIC-POVM +10 Is the Hilbert-Schmidt probability simply zero that a generic rank-2 two-qubit (“pseudo-pure”) density matrix is separable?

 4 Give an explicit example of a $d = 4$ SIC-POVM 3 Explicit 16⨯16 matrix representations of two-qudit entanglement witnesses 2 Is the Hilbert-Schmidt probability simply zero that a generic rank-2 two-qubit (“pseudo-pure”) density matrix is separable? 2 Suggest, partly based upon limited numerical results, possible “elegant” exact formulas for Bures two-qubit separability probability 1 Give an explicit derivation of the exact formula for the two-qubit absolute separability Hilbert-Schmidt probability $\approx 0.00365826$

### Tags (16)

 12 entanglement × 20 4 povm × 2 5 quantum-information × 12 3 qudit × 3 5 density-matrix × 12 3 entanglement-witness × 2 4 measurement × 2 2 quantum-state × 7 4 tomography × 2 1 mathematics × 3

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