Resource conversion between operational coherence and multipartite entanglement in many-body systems

• URL: http://arxiv.org/abs/2004.03995v3
• Date: Wed, 22 Sep 2021 14:29:28 GMT
• Title: Resource conversion between operational coherence and multipartite entanglement in many-body systems
• Authors: Li-Hang Ren, Meng Gao, Jun Ren, Z. D. Wang, Yan-Kui Bai
• Abstract summary: We establish a set of resource conversion relationships between quantum coherence and multipartite entanglement in many-body systems. We present a scheme for cyclic interconversion between coherence and genuine multipartite entanglement in three-qubit systems without loss.
• Score: 0.2924891685949017
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We establish a set of resource conversion relationships between quantum coherence and multipartite entanglement in many-body systems, where the operational measures of resource cost and distillation are focused. Under the multipartite incoherent operation, the initial coherence of single-party system bounds the maximal amounts of corresponding operational entanglement in an arbitrary bipartite partition as well as the genuine multipartite entanglement in many-body systems. Furthermore, the converted multipartite entanglement can be transferred to its subsystems and restored to coherence of a single party by means of local incoherent operations and classical communication, which constitutes a protocol of resource interconversion within the full incoherent operation scenario. As an example, we present a scheme for cyclic interconversion between coherence and genuine multipartite entanglement in three-qubit systems without loss. Moreover, we analyze the property of bipartite and multipartite genuine multi-level entanglement by the initial coherence and investigate multipartite resource dynamics in the conversion.

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