教師資料查詢 | 類別: 期刊論文 | 教師: 周子聰 Zicong Zhou (瀏覽個人網頁)

標題: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
語言英文
ISSN1434-6028; 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
Google+ 推薦功能,讓全世界都能看到您的推薦!