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Quantum algorithm for molecular properties and geometry optimization
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DOI：10.1063/1.3266959.png)
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摘要
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Quantum computers, if available, could substantially accelerate quantum simulations. We extend this result to show that the computation of molecular properties (energy derivatives) could also be sped up using quantum computers. We provide a quantum algorithm for the numerical evaluation of molecular properties, whose time cost is a constant multiple of the time needed to compute the molecular energy, regardless of the size of the system. Molecular properties computed with the proposed approach could also be used for the optimization of molecular geometries or other properties. For that purpose, we discuss the benefits of quantum techniques for Newton's method and Householder methods. Finally, global minima for the proposed optimizations can be found using the quantum basin hopper algorithm, which offers an additional quadratic reduction in cost over classical multi-start techniques.
Keyword:
ab initio calculations
circular dichroism
molecular configurations
quantum computing
vibrational states
期刊
IF:
3.1
论文数:
7.2W
被引数:
23.2W
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