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Molecular Structure Optimization Based on Electrons-Nuclei Quantum Dynamics Computation
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DOI：10.1021/acsomega.2c01546.png)
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Abstract
En 中文
A new concept of the molecular structure optimization method based on quantum dynamics computations is presented. Nuclei are treated as quantum mechanical particles, as are electrons, and the many-body wave function of the system is optimized by the imaginary time evolution method. The numerical demonstrations with a two-dimensional H-2(+) system and a H-C-N system exemplify two possible advantages of our proposed method: (1) the optimized nuclear positions can be specified with a small number of observations (quantum measurements) and (2) the global minimum structure of nuclei can be obtained without starting from any sophisticated initial structure and getting stuck in the local minima. This method is considered to be suitable for quantum computers, the development of which will realize its application as a powerful method.
Keywords:
SIMULATION
SYSTEMS
ALGORITHMS
SURFACES
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