Modern quantum algorithms are increasingly formulated as coherent procedures for implementing polynomial transformations of operators and singular values. This perspective provides a powerful and unifying language for quantum algorithm design, connecting a wide range of distinct problems through five closely related ke...
Tal Gurfinkel, Kaushika De Silva, A. Mahasinghe et al.· 0 citations
Preparation and verification of specific quantum states is an important capability for quantum devices to realise advantages over classical computations and algorithms. In this work, we have demonstrated an end-to-end framework that combines resource-efficient quantum state preparation with rapid, robust fidelity verif...
Archie Butterworth, Josh Green, Yu-Sen Wu et al.· 0 citations
Learning the generator of an open many-body system is more challenging than Hamiltonian learning: local responses, which can directly reveal coherent interaction terms in closed-system dynamics, may also contain dissipative contributions in open-system dynamics. In this paper, we address this challenge by developing an...
Jiaxing Song, Yukun Zhang, Xiao Yuan et al.· 0 citations
Quantum advantage is widely expected to require sufficiently deep circuits, where correlations and global computational structure can grow beyond the reach of efficient classical simulation. This expectation is especially stark for constant-depth circuits with local readout: the expectation value of any fixed local obs...
Yusen Wu, Yukun Zhang, Xiao-Ming Zhang et al.· 0 citations
This work proposes a non-Hermitian QRC in which non-Hermitian dynamics are employed as a tunable resource to significantly enhance the QRC performance, and demonstrates that the non-Hermitian reservoir can be tuned toward the edge of chaos by varying a single parameter that controls the non-Hermitian strength.
Lu-Fan Zhang, Yu-Sen Wu, Yong-Pan Gao et al.· Quantum Science and Technolo...· 0 citations
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