A conformal field theory description of magnetic flux fractionalization in Josephson junction ladders

被引：0
|
作者：
G. Cristofano
V. Marotta
A. Naddeo
G. Niccoli
机构：
[1] Universitá di Napoli “Federico II” and INFN,Dipartimento di Scienze Fisiche
[2] Universitá di Napoli “Federico II” and Coherentia-INFM,Dipartimento di Scienze Fisiche
[3] Sissa and INFN,undefined
[4] Sezione di Trieste,undefined
[5] Via Beirut 1,undefined
来源：
The European Physical Journal B - Condensed Matter and Complex Systems | 2006年 / 49卷
关键词：
Spectroscopy; Neural Network; Field Theory; Complex System; Nonlinear Dynamics;
D O I：
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中图分类号：
学科分类号：
摘要：
We show how the recently proposed effective theory for a Quantum Hall system at “paired states” filling ν=1 [1,2], the twisted model (TM), well adapts to describe the phenomenology of Josephson Junction ladders (JJL) in the presence of defects. In particular it is shown how naturally the phenomenon of flux fractionalization takes place in such a description and its relation with the discrete symmetries present in the TM. Furthermore we focus on “closed” geometries, which enable us to analyze the topological properties of the ground state of the system in relation to the presence of half flux quanta.
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页码：83 / 91
页数：8
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