المؤلفون: Wodraszka, Robert, Carrington Jr., Tucker

المصدر: Journal of Chemical Physics; 6/7/2024, Vol. 160 Issue 21, p1-19, 19p

مصطلحات موضوعية: COLLOCATION methods, POTENTIAL energy surfaces

مستخلص: We propose a new collocation multi-configuration time-dependent Hartree (MCTDH) method. It reduces point-set error by using more points than basis functions. Collocation makes it possible to use MCTDH with a general potential energy surface without computing any integrals. The collocation points are associated with a basis larger than the basis used to represent wavefunctions. Both bases are obtained from a direct product basis built from single-particle functions by imposing a pruning condition. The collocation points are those on a sparse grid. Heretofore, collocation MCTDH calculations with more points than basis functions have only been possible if both the collocation grid and the basis set are direct products. In this paper, we exploit a new pseudo-inverse to use both more points than basis functions and a pruned basis and grid. We demonstrate that, for a calculation of the lowest 50 vibrational states (energy levels and wavefunctions) of CH2NH, errors can be reduced by two orders of magnitude by increasing the number of points, without increasing the basis size. This is true also when unrefined time-independent points are used. [ABSTRACT FROM AUTHOR]

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المؤلفون: Anwar, H., Ahmed, Q., Vishwanath, A., Chunodkar, A.

المصدر: IEEE Transactions on Control Systems Technology IEEE Trans. Contr. Syst. Technol. Control Systems Technology, IEEE Transactions on. 32(4):1370-1385 Jul, 2024

المؤلفون: Zhang, L., Van Wouwe, T., Yan, S., Wang, R.

المصدر: IEEE Transactions on Biomedical Engineering IEEE Trans. Biomed. Eng. Biomedical Engineering, IEEE Transactions on. 71(6):1798-1809 Jun, 2024

المؤلفون: Yang, Junqin, Tian, Zheng, Yang, Jun

المصدر: 2024 IEEE International Conference on Industrial Technology (ICIT) Industrial Technology (ICIT), 2024 IEEE International Conference on. :1-6 Mar, 2024

Relation: 2024 IEEE International Conference on Industrial Technology (ICIT)

المؤلفون: Zamri, Afreena Nisha Mohd, Pa'Suya, Muhammad Faiz, Din, Ami Hassan Md, Samad, Abd Manan, Azmin, Nurul Shafiqah Hazelin Noor, Othman, Noorhurul Ain

المصدر: 2024 20th IEEE International Colloquium on Signal Processing & Its Applications (CSPA) Signal Processing & Its Applications (CSPA), 2024 20th IEEE International Colloquium on. :41-46 Mar, 2024

Relation: 2024 20th IEEE International Colloquium on Signal Processing & Its Applications (CSPA)

المؤلفون: Reddy, M. N., Miyatake, Masafumi, Dias, Joao Victor Pinon Pereira

المصدر: 2024 IEEE 18th International Conference on Advanced Motion Control (AMC) Advanced Motion Control (AMC), 2024 IEEE 18th International Conference on. :1-6 Feb, 2024

Relation: 2024 IEEE 18th International Conference on Advanced Motion Control (AMC)

المؤلفون: Zhang, Z., Dong, Y., Wen, Y., Yuan, H., Li, B.

المصدر: IEEE Sensors Journal IEEE Sensors J. Sensors Journal, IEEE. 24(7):10832-10840 Apr, 2024

المؤلفون: Massaoudi, I., Bonnet, P.

المصدر: IEEE Transactions on Electromagnetic Compatibility IEEE Trans. Electromagn. Compat. Electromagnetic Compatibility, IEEE Transactions on. 66(1):180-188 Feb, 2024

المؤلفون: Gao, Peisheng, Ling, Jiayan, Li, Boqiang, Gao, Jian

المصدر: 2023 2nd International Conference on Clean Energy Storage and Power Engineering (CESPE) CESPE Clean Energy Storage and Power Engineering (CESPE), 2023 2nd International Conference on. :73-78 Dec, 2023

Relation: 2023 2nd International Conference on Clean Energy Storage and Power Engineering (CESPE)

المؤلفون: Zhu, Guozhu, Jie, Hao, Hong, Weirong

المصدر: 2023 China Automation Congress (CAC) Automation Congress (CAC), 2023 China. :5709-5714 Nov, 2023

Relation: 2023 China Automation Congress (CAC)