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- Harbin UniversityCN18 papers
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16 papers · 1 filter
Detecting quantum steering in networks
Ming-Xiao Li, Yuqi Li, Ya Xi +5
Quantum networks promise an unprecedented leap in semi-device-independent communication and security by capitalizing on quantum steering. However, current methods for assessing qua…
Communication with Quantum Catalysts
Yuqi Li, Junjing Xing, Dengke Qu +8
Communication is essential for advancing science and technology. Quantum communication, in particular, benefits from the use of catalysts. During the communication process, these c…
Teleportation with Embezzling Catalysts
Junjing Xing, Yuqi Li, Dengke Qu +7
Quantum teleportation is the process of transferring quantum information using classical communication and pre-shared entanglement. This process can benefit from the use of catalys…
Dictionary-based Block Encoding of Sparse Matrices with Low Subnormalization and Circuit Depth
Chunlin Yang, Zexian Li, Hongmei Yao +3
Block encoding severs as an important data input model in quantum algorithms, enabling quantum computers to simulate non-unitary operators effectively. In this paper, we propose an…
Improved tests of genuine entanglement for multiqudits
Xia Zhang, Naihuan Jing, Hui Zhao +2
We give an improved criterion of genuine multipartite entanglement for an important class of multipartite quantum states using generalized Bloch representations of the density matr…
Entanglement as the cross-symmetric part of quantum discord
Chunhe Xiong, Sunho Kim, Asutosh Kumar +3
In this paper, we show that the minimal quantum discord over "cross-symmetric" state extensions is an entanglement monotone. In particular, we show that the minimal Bures distance…