Zobrazeno 1 - 10
of 8 957
pro vyhledávání: '"Johnson, Paul A"'
Autor:
Johnson, Paul A., Moisset, Jean-David, Gratton, Marianne, Baril, Émile, Plourde, Marc-Antoine, Lefebvre, Mathis, Kerleaux, Marianne, Ayers, Paul W., Cassam-Chenaï, Patrick, De Baerdemacker, Stijn, Van Neck, Dimitri
Wavefunction forms based on products of electron pairs are usually constructed as closed-shell singlets, which is insufficient when the molecular state has a nonzero spin or when the chemistry is determined by $d$- or $f-$electrons. A set of two-elec
Externí odkaz:
http://arxiv.org/abs/2410.01761
Autor:
Johnson, Paul A.
Richardson-Gaudin states provide a basis of the Hilbert space for strongly correlated electrons. In this study, optimal expressions for the transition density matrix elements between Richardson-Gaudin states are obtained with a cost comparable with t
Externí odkaz:
http://arxiv.org/abs/2405.00279
Autor:
Johnson, Paul Andrew
This chapter gives an overview of Richardson-Gaudin states which represent weakly correlated pairs of electrons. They are parametrized by sets of numbers obtained from non-linear equations. The best method to solve these equations is presented in a s
Externí odkaz:
http://arxiv.org/abs/2312.08804
Richardson-Gaudin (RG) states are employed as a variational wavefunction ansatz for strongly correlated isomers of H$_4$ and H$_{10}$. In each case a single RG state describes the seniority-zero sector quite well. Simple natural orbital functionals o
Externí odkaz:
http://arxiv.org/abs/2307.13690
Autor:
Kassa, Hiwot Tadese, Johnson, Paul, Akers, Jason, Ghosh, Mrinmoy, Tulloch, Andrew, Mudigere, Dheevatsa, Park, Jongsoo, Liu, Xing, Dreslinski, Ronald, Ardestani, Ehsan K.
Recommendation models are very large, requiring terabytes (TB) of memory during training. In pursuit of better quality, the model size and complexity grow over time, which requires additional training data to avoid overfitting. This model growth dema
Externí odkaz:
http://arxiv.org/abs/2305.01515
Autor:
Chuiko, Valerii, Richards, Addison D. S., Sánchez-Díaz, Gabriela, Martínez-González, Marco, Sanchez, Wesley, B. Da Rosa, Giovanni, Richer, Michelle, Zhao, Yilin, Adams, William, Johnson, Paul A., Heidar-Zadeh, Farnaz, Ayers, Paul W.
Publikováno v:
Journal of Chemical Physics; 10/7/2024, Vol. 161 Issue 13, p1-12, 12p
Autor:
Johnson, Paul Elliott, author
Publikováno v:
Media and January 6th, 2024.
Externí odkaz:
https://doi.org/10.1093/oso/9780197758526.003.0009
We report the simultaneous softening and compaction of a confined dense granular pack in acoustic resonance experiments. Elastic softening is manifested by a reduction of the shear-wave speed, as the wave amplitude increases beyond some threshold. No
Externí odkaz:
http://arxiv.org/abs/2209.02146
Seniority-zero geminal wavefunctions are known to capture bond-breaking correlation. Among this class of wavefunctions, Richardson-Gaudin states stand out as they are eigenvectors of a model Hamiltonian. This provides a clear physical picture, clean
Externí odkaz:
http://arxiv.org/abs/2209.00623
Publikováno v:
International Journal of Organizational Analysis, 2023, Vol. 32, Issue 2, pp. 299-317.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/IJOA-08-2022-3393