List questions from quantum-information

126

Views

Proof that the adjoint operator of $\Phi$ is $\Phi(\sigma)=\sum_{i}A_{i}^{*}\sigma B_{i}$ in terms of Kraus operators.

Published on 01 Dec 2020 - 15:17

82

Views

$\sup_{0 \leq M \leq I_{\mathcal{H}_1}} \frac{\operatorname{Tr}[\rho M]}{\operatorname{Tr}[\sigma M]}$ satisfies Data Processing Inequality

Published on 06 Dec 2020 - 18:59

17

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$\sup_{0 \leq M \leq I_{\mathcal{H}_1}} \frac{Tr[\rho M]}{Tr[\sigma M]}$ satisfies DPI

Published on 05 Dec 2020 - 21:25

82

Views

Quantum Typicality

Published on 10 Dec 2020 - 21:17

89

Views

Bipartite Version of Schur's Lemma

Published on 12 Dec 2020 - 4:17

86

Views

Sums of largest arithmetic and geometric means of a probability vector

Published on 31 Dec 2020 - 15:12

86

Views

Is the support of $\rho_{AB}$ always contained in the support of $\rho_A\otimes\rho_B$?

Published on 28 Jan 2021 - 23:10

72

Views

Is the convex hull of product channels strictly contained in the set of all channels

Published on 26 Mar 2026 - 11:01

63

Views

Can't understand how the authors got this equation?

Published on 14 Feb 2021 - 13:01

105

Views

How to prove that frame functions on Hilbert spaces are additive?

Published on 15 Feb 2021 - 19:59

322

Views

Writing Probability distribution in terms of a trace over a density matrix

Published on 16 Feb 2021 - 16:14

96

Views

Notation for n-qubits.

Published on 11 Mar 2021 - 13:26

41

Views

Modifying a quantum teleportation protocol step.

Published on 29 Mar 2021 - 19:32

50

Views

Dual norm only for a part of matrix

Published on 25 Mar 2026 - 11:20

67

Views

Order-finding problem / period finding?

Published on 01 Apr 2021 - 18:45

List Question

Proof that the adjoint operator of $\Phi$ is $\Phi(\sigma)=\sum_{i}A_{i}^{*}\sigma B_{i}$ in terms of Kraus operators.

$\sup_{0 \leq M \leq I_{\mathcal{H}_1}} \frac{\operatorname{Tr}[\rho M]}{\operatorname{Tr}[\sigma M]}$ satisfies Data Processing Inequality

$\sup_{0 \leq M \leq I_{\mathcal{H}_1}} \frac{Tr[\rho M]}{Tr[\sigma M]}$ satisfies DPI

Quantum Typicality

Bipartite Version of Schur's Lemma

Sums of largest arithmetic and geometric means of a probability vector

Is the support of $\rho_{AB}$ always contained in the support of $\rho_A\otimes\rho_B$?

Is the convex hull of product channels strictly contained in the set of all channels

Can't understand how the authors got this equation?

How to prove that frame functions on Hilbert spaces are additive?

Writing Probability distribution in terms of a trace over a density matrix

Notation for n-qubits.

Modifying a quantum teleportation protocol step.

Dual norm only for a part of matrix

Order-finding problem / period finding?

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