Bei Zeng
6 papers in the PaperMetrix corpus
Papers by this author
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Experimental Detection of Entanglement Polytopes via Local Filters
2015 · arXiv (Cornell University)
Entanglement polytopes result in finitely many types of entanglement that can be detected by only measuring single-particle spectra. With high probability, however, the local spectra lie in more than one polytope, hence providing no information …
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Upper bounds for relative entropy of entanglement based on convex hull approximation
2019 · arXiv (Cornell University)
Quantifying entanglement for multipartite quantum state is a crucial task in many aspects of quantum information theory. Among all the entanglement measures, relative entropy of entanglement $E_{R}$ is an important quantity due to its clear …
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Higher Rank Matricial Ranges and Hybrid Quantum Error Correction
2019 · arXiv (Cornell University)
We introduce and initiate the study of a family of higher rank matricial ranges, taking motivation from hybrid classical and quantum error correction coding theory and its operator algebra framework. In particular, for a noisy …
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Neural networks for quantum inverse problems
2022 · New Journal of Physics
Abstract Quantum inverse problem (QIP) is the problem of estimating an unknown quantum system from a set of measurements, whereas the classical counterpart is the inverse problem of estimating a distribution from a set of …
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Mitigating algorithmic errors in quantum optimization through energy extrapolation
2022 · Quantum Science and Technology
Abstract Quantum optimization algorithms offer a promising route to finding the ground states of target Hamiltonians on near-term quantum devices. Nonetheless, it remains necessary to limit the evolution time and circuit depth as much as …
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Tapping into Permutation Symmetry for Improved Detection of k-Symmetric Extensions
2023 · Entropy
Symmetric extensions are essential in quantum mechanics, providing a lens through which to investigate the correlations of entangled quantum systems and to address challenges like the quantum marginal problem. Though semi-definite programming (SDP) is a …