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Free, publicly-accessible full text available July 9, 2026
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Mihm, Tina N; Trerayapiwat, Kasidet Jing; Li, Xinxin; Ma, Xuedan; Sharifzadeh, Sahar (, Materials Advances)Free, publicly-accessible full text available January 1, 2027
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Mihm, Tina N.; Weiler, Laura; Shepherd, James J. (, Journal of Chemical Theory and Computation)
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Mihm, Tina N.; Schäfer, Tobias; Ramadugu, Sai Kumar; Weiler, Laura; Grüneis, Andreas; Shepherd, James J. (, Nature Computational Science)Abstract Computationally efficient and accurate quantum mechanical approximations to solve the many-electron Schrödinger equation are crucial for computational materials science. Methods such as coupled cluster theory show potential for widespread adoption if computational cost bottlenecks can be removed. For example, extremely densek-point grids are required to model long-range electronic correlation effects, particularly for metals. Although these grids can be made more effective by averaging calculations over an offset (or twist angle), the resultant cost in time for coupled cluster theory is prohibitive. We show here that a single special twist angle can be found using the transition structure factor, which provides the same benefit as twist averaging with one or two orders of magnitude reduction in computational time. We demonstrate that this not only works for metal systems but also is applicable to a broader range of materials, including insulators and semiconductors.more » « less
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