| von Neumann entropy signatures of a transition in one-dimensional electron systems with long-range correlated disorder | |
|---|---|
| 學年 | 99 |
| 學期 | 1 |
| 出版（發表）日期 | 2010-10-01 |
| 作品名稱 | von Neumann entropy signatures of a transition in one-dimensional electron systems with long-range correlated disorder |
| 作品名稱（其他語言） | |
| 著者 | Gong, Long-Yan; Tong, Pei-Qing; Zhou, Zi-Cong |
| 單位 | 淡江大學物理學系 |
| 出版者 | Heidelberg : Springer |
| 著錄名稱、卷期、頁數 | The European Physical Journal B 77(3), pp.413-417 |
| 摘要 | We study the von Neumann entropy and related quantities in one-dimensional electron systems with on-site long-range correlated potentials. The potentials are characterized by a power-law power spectrum S(k) ∝ 1/kα, where α is the correlation exponent. We find that the first-order derivative of spectrum-averaged von Neumann entropy is maximal at a certain correlation exponent αm for a finite system, and has perfect finite-size scaling behaviors around αm . It indicates that the first-order derivative of the spectrum-averaged von Neumann entropy has singular behavior, and αm can be used as a signature for transition points. For the infinite system, the threshold value αc = 1.465 is obtained by extrapolating αm. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1434-6028; 1434-6036 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Gong, Long-Yan; Tong, Pei-Qing; Zhou, Zi-Cong |
| 審稿制度 | |
| 國別 | |
| 公開徵稿 | |
| 出版型式 | |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/65750 ) |
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