Twisted CFT and bilayer quantum Hall systems in the presence of an impurity

被引：17

作者：

Cristofano, G

Marotta, V

Naddeo, A

机构：

[1] Univ Naples Federico II, Dipartimento Sci Fis, I-80126 Naples, Italy

[2] Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy

[3] Ist Nazl Fis Nucl, Unita Napoli, I-80126 Naples, Italy

来源：

PHYSICS LETTERS B | 2003年 / 571卷 / 3-4期

关键词：

vertex operator; Kac-Moody algebra; quantum Hall effect;

D O I：

10.1016/j.physletb.2003.04.001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We identify the impurity interactions of the recently proposed CFT description of a bilayer quantum Hall system at filling nu = m/pm+2 [Mod. Phys. Lett. A 15 (2000) 1679]. Such a CFT is obtained by m-reduction on the one layer system, with a resulting pairing symmetry and presence of quasi-holes. For the m = 2 case boundary terms are shown to describe an impurity interaction which allows for a localized tunnel of the Kondo problem type. The presence of an anomalous fixed point is evidenced at finite coupling which is unstable with respect to unbalance and flows to a vacuum state with no quasi-holes. (C) 2003 Published by Elsevier B.V.

引用

页码：250 / 259

页数：10

共 50 条

[41] Bosonization approach for bilayer quantum Hall systems at νT=1
Doretto, R. L.
Caldeira, A. O.
Smith, C. Morais
PHYSICAL REVIEW LETTERS, 2006, 97 (18)
[42] The study of Goldstone modes in ν = 2 bilayer quantum Hall systems
Y. Hama
Y. Hidaka
G. Tsitsishvili
Z.F. Ezawa
The European Physical Journal B, 2012, 85
[43] Integer and fractional quantum Hall effects in bilayer electron systems
Ezawa, ZF
Sawada, A
Kumada, N
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2002, 63 (6-8) : 1289 - 1296
[44] Interlayer tunneling and the problem of superfluidity in bilayer quantum Hall systems
Fil, D. V.
Shevchenko, S. I.
LOW TEMPERATURE PHYSICS, 2007, 33 (09) : 780 - 782
[45] Ground state of v=1 bilayer quantum Hall systems
Shibata, N
Yoshioka, D
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (04)
[46] Goldstone Modes in Bilayer Quantum Hall Systems at v=2
Hama, Y.
Hidaka, Y.
Tsitsishvili, G.
Ezawa, Z. F.
20TH INTERNATIONAL CONFERENCE ON THE APPLICATION OF HIGH MAGNETIC FIELDS IN SEMICONDUCTOR PHYSICS (HMF-20), 2013, 456
[47] Excitation spectrum of bilayer v=2 quantum Hall systems
Shimoda, Y
Nakajima, T
Sawada, A
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 22 (1-3): : 56 - 59
[48] Composite-fermion pairing in bilayer quantum Hall systems
Morinari, T
PHYSICAL REVIEW B, 1999, 59 (11): : 7320 - 7322
[49] Temperature scaling of quantum Hall plateau transition in bilayer systems
Kodera, Katsuyoshi
Endo, Akira
Katsumoto, Shingo
Iye, Yasuhiro
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2006, 34 (1-2): : 112 - 115
[50] The study of Goldstone modes in ν=2 bilayer quantum Hall systems
Hama, Y.
Hidaka, Y.
Tsitsishvili, G.
Ezawa, Z. F.
EUROPEAN PHYSICAL JOURNAL B, 2012, 85 (11):

← 1 2 3 4 5 →