| ID | 6497 |
| File | |
| Authors |
Sakakibara, Hirofumi
Department of Applied Mathematics and Physics, Tottori University / Computational Condensed Matter Physics Laboratory, RIKEN
Researchers DB
KAKEN
Jang, Seung Woo
Department of Physics, Korea Advanced Institute of Science and Technology (KAIST)
Kino, Hiori
National Institute for Materials Science
Han, Myung Joon
Department of Physics, Korea Advanced Institute of Science and Technology (KAIST)
Kuroki, Kazuhiko
Department of Physics, Osaka University
Kotani, Takao
Department of Applied Mathematics and Physics, Tottori University
Researchers DB
KAKEN
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| Abstract | We present a new method to obtain a model Hamiltonian from first-principles calculations. The effective interaction contained in the model is determined on the basis of random phase approximation (RPA). In contrast to previous methods such as projected RPA and constrained RPA (cRPA), the new method named “model-mapped RPA” takes into account the long-range part of the polarization effect to determine the effective interaction in the model. After discussing the problems of cRPA, we present the formulation of the model-mapped RPA, together with a numerical test for the single-band Hubbard model of HgBa2CuO4.
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| Publisher | The Physical Society of Japan
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| Content Type |
Journal Article
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| Link | |
| ISSN | 00319015
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| NCID | AA11509785
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| Journal Title | Journal of the Physical Society of Japan
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| Volume | 86
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| Issue | 4
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| Start Page | 044714
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| Published Date | 2017-03-31
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| Publisher-DOI | |
| Text Version |
Author
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| Rights | © 2017 The Physical Society of Japan (J. Phys. Soc. Jpn. 86, 044714.)
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| Citation | H. Sakakibara, S.W. Jang, H. Kino, M.J. Han, K. Kuroki, T. Kotani. Model-mapped RPA for determining the effective Coulomb interaction. Journal of the Physical Society of Japan. 2017, 86(4), 044714
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| Department |
Faculty of Engineering/Graduate School of Engineering
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| Language |
English
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