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Anomalous oscillations due to Aharonov-Bohm and Aharonov-Casher effects of the one-dimensional Hubbard ring in the strong coupling limit
http://hdl.handle.net/10191/49480
http://hdl.handle.net/10191/49480b5c172b0-8400-4b32-a94a-daa04231ae9a
名前 / ファイル | ライセンス | アクション |
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85_124716.pdf (592.4 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-01-26 | |||||
タイトル | ||||||
タイトル | Anomalous oscillations due to Aharonov-Bohm and Aharonov-Casher effects of the one-dimensional Hubbard ring in the strong coupling limit | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Anomalous oscillations due to Aharonov-Bohm and Aharonov-Casher effects of the one-dimensional Hubbard ring in the strong coupling limit | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Sano, Kazuhiro
× Sano, Kazuhiro× Ono, Yoshiaki |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigate anomalous oscillations due to the Aharonov-Bohm(AB) and Aharonov-Casher(AC) effects of the one-dimensional Hubbard ring with flux in the strong coupling limit. By using the exact diagonalization method and the Shiba transformation, we examine the energies of the ground state and few excited states in the presence of the flux producing the AB or AC effect, where the transformation not only reverses the sign of the interaction U, but also exchanges the role between the AB and AC effects in the model Hamiltonian. We classify the number of oscillation of the ground state as a function of the flux systematically and clarify the close relationship between the AB and AC effects. For example, it is shown that the number of the periods are given by N_L - N_e(N_L - N_↑ + N_↓) for the AB(AC) effect in the very strong attraction, where N_L, N_e, N_↑, and N_↓ are the system size, the number of the total electrons, the number of electrons with up-spin, and the number of electrons with down-spin, respectively, in the condition of N_L > N_e > N_↓ > N_↑. More special case, such as the half-filled band and spin balanced case (N_L = N_e and N_↓ = N_↑ ), we find the periodicity of the system to be 0(2) for the AB(AC) effect in the very strong repulsion. These results show us the nature of interesting phenomena originated by the interplay between the strong correlation and the quantum interference effect in the mesoscopic ring. | |||||
書誌情報 |
Journal of the Physical Society of Japan en : Journal of the Physical Society of Japan 巻 85, 号 12, p. 124716-1-124716-6, 発行日 2016-11 |
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出版者 | ||||||
出版者 | The Physical Society of Japan | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00319015 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00704814 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.7566/JPSJ.85.124716 | |||||
権利 | ||||||
権利情報 | Copyright (C) 2016 The Physical Society of Japan | |||||
著者版フラグ | ||||||
値 | author | |||||
異版である | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://journals.jps.jp/doi/abs/10.7566/JPSJ.85.124716 |