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Topological description of (spin) Hall conductances on Brillouin zone lattices: quantum phase transitions and topological changes
http://hdl.handle.net/2241/97898
http://hdl.handle.net/2241/978987edd60e5-9dd1-4f28-8ba8-bfd2ef7b5645
名前 / ファイル | ライセンス | アクション |
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PE_34-1-2.pdf (173.7 kB)
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Item type | Preprint(1) | |||||
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公開日 | 2007-12-20 | |||||
タイトル | ||||||
タイトル | Topological description of (spin) Hall conductances on Brillouin zone lattices: quantum phase transitions and topological changes | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
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資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
資源タイプ | other | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
初貝, 安弘
× 初貝, 安弘× Fukui, T.× Suzuki, H. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | It is widely accepted that topological quantities are useful to describe quantum liquids in low dimensions. The (spin) Hall conductances are typical examples. They are expressed by the Chern numbers, which are topological invariants given by the Berry connections of the ground states. We present a topological description for the (spin) Hall conductances on a discretized Brillouin zone. At the same time, it is quite efficient in practical numerical calculations for concrete models. We demonstrate its validity in a model with quantum phase transitions. Topological changes supplemented with the transition is also described in the present lattice formulation. | |||||
言語 | en | |||||
書誌情報 |
en : Physica. E, Low-dimensional systems & nanostructures 巻 34, 号 1-2, p. 336-339, 発行日 2006-08 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1386-9477 | |||||
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収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1119366X | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.physe.2006.03.141 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2006 Elsevier B.V. | |||||
出版者 | ||||||
出版者 | Elsevier | |||||
言語 | en |