| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
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|
タイトル |
Exact Form-Factor Results for the Longitudinal Structure Factor of the Massless XXZ Model in Zero Field |
|
言語 |
en |
| 作成者 |
Caux, Jean-Sébastien
Konno, Hitoshi
Sorrell, Mark
Weston, Robert
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| アクセス権 |
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|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
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|
権利情報 |
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
| 主題 |
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|
主題Scheme |
NDC |
|
主題 |
420 |
| 内容記述 |
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|
内容記述 |
We consider the XXZ quantum spin chain in its massless, disordered regime at zero field. We derive an exact expression for the two-spinon form-factor of Sz = 1/2σz by taking a limit of the massive XYZ form-factors found by Lashkevich and by Lukyanov and Terras. This result is used to find the two-spinon contribution to the spectral decomposition of the longitudinal structure factor Szz(k, w). We find that this contribution provides an accurate approximation to the full structure factor over a wide range of the anisotropy parameter. The asymptotic behaviour of Szz(k, w) is computed as the upper and lower w thresholds of the two-spinon (w, k) band are approached, and an analysis of the region of validity of this threshold behaviour is performed. Our results reproduce and refine existing threshold behaviour predictions and extend these results to an accurate description throughout the two-spinon continuum. |
|
言語 |
en |
| 出版者 |
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出版者 |
IOP Publishing Ltd |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
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|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
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|
識別子タイプ |
DOI |
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関連識別子 |
10.1088/1742-5468/2012/01/P01007 |
| 関連情報 |
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|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1088/1742-5468/2012/01/P01007 |
| 収録物識別子 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1742-5468 |
| 開始ページ |
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|
開始ページ |
P01007 |
| 書誌情報 |
Journal of Statistical Mechanics: Theory and Experiment
Journal of Statistical Mechanics: Theory and Experiment
巻 2012,
p. P01007,
発行日 2012-01-16
|
| 旧ID |
46880 |
JSMTE_2012_P01007.pdf (3.0 MB)
