Topological order in Josephson junction ladders with Mobius boundary conditions

被引:13
作者
Cristofano, G [1 ]
Marotta, V
Naddeo, A
机构
[1] Univ Naples Federico II, Dipartimento Sci Fisiche, I-80126 Naples, Italy
[2] Complesso Univ M Sant Angelo, Ist Nazl Fis Nucl, Sez Napoli Via Cintia, I-80126 Naples, Italy
[3] Complesso Univ M Sant Angelo, Coherentia INFM, Unita Napoli Via Cintia, I-80126 Naples, Italy
来源
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT | 2005年
关键词
conformal field theory (theory); frustrated systems (theory); mesoscopic systems (theory);
D O I
10.1088/1742-5468/2005/03/P03006
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
We propose a CFT description for a closed one-dimensional fully frustrated ladder of quantum Josephson junctions with Mobius boundary conditions; in particular we show how such a system can develop topological order. Such a property is crucial for its implementation as a 'protected' solid state qubit.
引用
收藏
页码:89 / 101
页数:13
相关论文
共 40 条
[1]  
Affleck I, 1995, ACTA PHYS POL B, V26, P1869
[2]   CRITICAL-THEORY OF OVERSCREENED KONDO FIXED-POINTS [J].
AFFLECK, I ;
LUDWIG, AWW .
NUCLEAR PHYSICS B, 1991, 360 (2-3) :641-696
[3]   THE KONDO EFFECT, CONFORMAL FIELD-THEORY AND FUSION RULES [J].
AFFLECK, I ;
LUDWIG, AWW .
NUCLEAR PHYSICS B, 1991, 352 (03) :849-862
[4]   Observation of breathers in Josephson ladders [J].
Binder, P ;
Abraimov, D ;
Ustinov, AV ;
Flach, S ;
Zolotaryuk, Y .
PHYSICAL REVIEW LETTERS, 2000, 84 (04) :745-748
[5]   Exploration of a rich variety of breather modes in Josephson ladders [J].
Binder, P ;
Ustinov, AV .
PHYSICAL REVIEW E, 2002, 66 (01) :1-016603
[6]   A twisted conformal field theory description of dissipative quantum mechanics [J].
Cristofano, G ;
Marotta, V ;
Naddeo, A .
NUCLEAR PHYSICS B, 2004, 679 (03) :621-631
[7]   Twisted CFT and bilayer quantum Hall systems in the presence of an impurity [J].
Cristofano, G ;
Marotta, V ;
Naddeo, A .
PHYSICS LETTERS B, 2003, 571 (3-4) :250-259
[8]   Paired states on a torus [J].
Cristofano, G ;
Maiella, G ;
Marotta, V ;
Niccoli, G .
NUCLEAR PHYSICS B, 2002, 641 (03) :547-567
[9]  
CRISTOFANO G, IN PRESS JOSEPHSON J
[10]  
CRITOFANO G, 2004, HEPTH0404048