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- W4377864827 abstract "Variational quantum algorithms have been a promising candidate to utilize near-term quantum devices to solve real-world problems. The powerfulness of variational quantum algorithms is ultimately determined by the expressiveness of the underlying quantum circuit ansatz for a given problem. In this work, we propose a sequentially generated circuit ansatz, which naturally adapts to 1D, 2D, 3D quantum many-body problems. Specifically, in 1D our ansatz can efficiently generate any matrix product states with a fixed bond dimension, while in 2D our ansatz generates the string-bond states. As applications, we demonstrate that our ansatz can be used to accurately reconstruct unknown pure and mixed quantum states which can be represented as matrix product states, and that our ansatz is more efficient compared to several alternatives in finding the ground states of some prototypical quantum many-body systems as well as quantum chemistry systems, in terms of the number of quantum gate operations." @default.
- W4377864827 created "2023-05-24" @default.
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- W4377864827 date "2023-05-22" @default.
- W4377864827 modified "2023-10-18" @default.
- W4377864827 title "A sequentially generated variational quantum circuit with polynomial complexity" @default.
- W4377864827 doi "https://doi.org/10.48550/arxiv.2305.12856" @default.
- W4377864827 hasPublicationYear "2023" @default.
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