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Updated: Jan 13, 2026

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

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Gutzwiller多体波動関数に基づく原子固相水素のab initio計算

Zhuo Ye¹, Jun Liu², Yong-Xin Yao³

¹Ames National Laboratory, Ames National Laboratory - US DOE, Ames, Iowa 50011, United States, Ames, Iowa, 50011-3020, UNITED STATES.

Journal of physics. Condensed matter : an Institute of Physics journal

|January 8, 2026

まとめ

結晶性水素の研究のために、2つの高度な計算手法である相関行列繰り込み理論（CMRT）とGutzwiller共役勾配最小化法（GCGM）を導入する。GCGMは、CMRTおよびDFTと比較して、全エネルギー予測において優れた精度を提供する。

背景:

結晶性水素相の正確な理論的モデリングは、極端な条件下での材料を理解するために重要である。
密度汎関数理論（DFT）のような既存の方法は、しばしば強い電子相関効果に苦労する。
Ab initio多体法は、より高い精度への道を提供するが、計算コストが高くなる可能性がある。

結論:

CMRTとGCGMは、結晶性水素のような相関電子系を研究するための堅牢なab initio法である。
GCGMは、全エネルギー計算においてCMRTよりも精度の点で大幅な改善を提供する。
これらのGutzwillerベースの方法は、経験的パラメータ化および計算コストの高い技術に代わる実行可能な選択肢を提供する。

キーワード:

Gutzwiller近似 Gutzwiller波動関数多体アプローチ

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