General channel capacities from quantum channel-state duality

Fuente: arXiv
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Main Authors: Liu, Y. -D., Wang, D. -S.
Format: Preprint
Published: 2025
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author Liu, Y. -D.
Wang, D. -S.
author_facet Liu, Y. -D.
Wang, D. -S.
contents The quantum channel-state duality permits the characterization of a quantum process through a quantum state, referred to as a Choi state. This characteristic serves as the impetus for the quantum computing paradigm that utilizes Choi states as information sources. In this work, the fundamental theorems regarding quantum channel capacity are proven when Choi states are considered as sources. This achievement enriches the set of capacities associated with quantum channels. Moreover, it gives rise to novel opportunities for the comprehension of superadditivity phenomena and the discovery of new classes of quantum error-correction codes.
format Preprint
id arxiv_https___arxiv_org_abs_2504_01411
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle General channel capacities from quantum channel-state duality
Liu, Y. -D.
Wang, D. -S.
Quantum Physics
The quantum channel-state duality permits the characterization of a quantum process through a quantum state, referred to as a Choi state. This characteristic serves as the impetus for the quantum computing paradigm that utilizes Choi states as information sources. In this work, the fundamental theorems regarding quantum channel capacity are proven when Choi states are considered as sources. This achievement enriches the set of capacities associated with quantum channels. Moreover, it gives rise to novel opportunities for the comprehension of superadditivity phenomena and the discovery of new classes of quantum error-correction codes.
title General channel capacities from quantum channel-state duality
topic Quantum Physics
url https://arxiv.org/abs/2504.01411