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題 名 | Correlations and Transport in Vortex Liquids |
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作 者 | Nelson,David R.; | 書刊名 | 中原學報 |
卷 期 | 23:3 1995.07[民84.07] |
頁 次 | 頁15-41 |
分類號 | 337.472 |
關鍵詞 | 第二類超導體; 旋滑線; 玻色子侷部化; 超流體; Type-Ⅱ supercomductor; Vartex limes; Bosom localigation; Superpluid; |
語 文 | 英文(English) |
中文摘要 | 本文主要是描述出現在氧化銅高溫超導體的旋滑線所形成的液體的理論工作。我們討論在弱無序下的關聯性以及黏滯的電性。黏滯的電性是當糾纏在一起的通量線液體試圖穿過數個強力栓住的的通量線而產生的。利用單質點量子力學的相似性,我們証明:從獨立通量線到平面栓住式線性栓住的束縛能的大量重整化,係由熱擾動所導致。從通量線的統計力學到二線玻色子超流體之間的相關映射,我們亦給予一回顧,且特別強調相間連貫的物理意義符。我們論証符:當許多平面栓住或線性栓住的旋滑線出現時符,玻色子侷部化對於通量線提供一個適當的描述符。我們亦建議了一些對於此理論作驗証的實驗工作。 |
英文摘要 | The theory of the vortex-line liquids which arise in the copper oxide high temperature super conductors is described. We discuss correlations in th presence of weak disorder, and the“viscous electricity" which results when entangled flux liquids attempt to flow past a few strong pins. We show, using an analogy with single particle quantum mechanics, that thermal fluctuations lead to a large renormalization of the binding energy of an isolated line to planar or linear pins. A related mapping of the statistical mechanics of many flux lines onto the physics of two-dimensional boson superfluids is reviewed, with an emphasis on the physical meaning of phase coherence. We argue that“boson localization" provides an appropriate description of flux lines when many planar or linear pins are present. A number of experimental texts of the theory are proposed. |
本系統中英文摘要資訊取自各篇刊載內容。