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Optimal Port-based Teleportation
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Optimal Port-based Teleportation
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Deterministic port-based teleportation (dPBT) protocol is a scheme where a quantum state is guaranteed to be transferred to another system without unitary correction. We characterize the best achievable performance of the dPBT when both the resource state and the measurement is optimized. Surprisingly, the best possible fidelity for an arbitrary number of ports and dimension of the teleported state is given by the largest eigenvalue of a particular matrix -- Teleportation Matrix. It encodes the relationship between a certain set of Young diagrams and emerges as the the optimal solution to the relevant semidefinite program.
Forward citations
Cited by 2 Pith papers
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A resource theory of asynchronous quantum information processing
Introduces resource theories for asynchronous port-based teleportation with free classical and quantum pre-processing, computes tight fidelity bounds for isotropic, graph, and symmetrized EPR states, and proves the st...
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Multicopy quantum state teleportation with application to storage and retrieval of quantum programs
Maximal success probability for multicopy teleportation without receiver correction is p(d,k)=k/[d(k-1+d)], attained by explicit protocol using group representation theory, with application to enhanced quantum program...
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