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Do identical reduced system trajectories ρₛ(t) guarantee identical recoverability in small open quantum systems?

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If two QPUs can share entanglement, can any pair of qubits be entangled?

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Is operator entanglement entropy related to a Choi state?

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The converse problem for the maximal Schmidt coefficient in antisymmetric subspaces

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Can Schmidt decomposition geometry predict quantum computational advantage?

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3 answers
523 views

Can we know if two subsystems are entangled by only looking at one of them?

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1 answer
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Quantum Phase Estimation

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1 answer
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How do researchers quantify the usefulness of entanglement in noisy intermediate-scale quantum (NISQ) devices?

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1 answer
106 views

Can an $n-1$ qubit entangled state be created from an $n$ qubit entangled state by LOCC?

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369 views

How does quantum entanglement enable error correction without violating the no-cloning theorem?

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Energy of one qubit in an interacting pair

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193 views

Is generating usable entanglement difficult?

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1 answer
132 views

Complexity of deciding whether a subcomponent of a pure state is unentangled

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Is there a "co-CHSH game" (or "co-Magic Squares game")?

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