Quantum-assisted simulator

نویسندگان

چکیده

Quantum simulation can help us study poorly understood topics such as high-temperature superconductivity and drug design. However, existing quantum algorithms for current computers often have drawbacks that impede their application. Here, we provide a hybrid quantum-classical algorithm simulating the dynamics of systems. Our approach takes ansatz wave function linear combination states. The states are fixed, parameters variationally adjusted. Unlike variational algorithms, our does not require any classical-quantum feedback loop by construction bypasses barren plateau problem. Moreover, complicated measurements Hadamard test. entire framework is compatible with experimental capabilities thus be implemented immediately.

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ژورنال

عنوان ژورنال: Physical review

سال: 2021

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physreva.104.042418