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W-INFINITE SYMMETRIES IN THE HIERARCHICAL QUASI-PARTICLE STATES (LOWEST LANDAU-LEVEL STATES) OF THE FRACTIONAL QUANTUM HALL SYSTEMS
CHEN, YX; MA, ZS; SU, ZB; CHEN, YX , ZHEJIANG UNIV,INST MODERN PHYS,HANGZHOU 310027,PEOPLES R CHINA.
1995
发表期刊INTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN0217-9792
卷号9期号:2页码:195-219
摘要We investigate the W infinite symmetries in the theory of general fractional quantum Hall effects by using the lowest Landau level constraint approach. We find that there does exist a W infinite symmetric algebra for the fractional quantum Hall system with all the quasiparticles being restricted to the lowest Landau level. The corresponding generators can be used to generate the new degenerate wavefunctions of the lowest Landau level states by means of Laughlin and Halperin wavefunctions. Meanwhile, we find there still exists another W infinite symmetric algebra in the system, whose generators are used to generate the degenerate wavefunctions of the lowest Landau level for the anti-quasiparticles. We conclude that the FQH system can effectively be described by quasiparticle features or anti-quasiparticle features. We also show that the local part of the W infinite symmetric algebras is the magnetic translation operator of the general fractional quantum Hall system. We finally construct the operators of the single mode wave density excitations in the system and discuss their operator product relations.
部门归属ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA; ZHONGSHAN UNIV,ADV RES CTR,CANTON 510275,PEOPLES R CHINA
关键词Cooperative-ring-exchange Simons Gauge-theories Edge Excitations Anyon Superconductivity Collective Excitations Dimensional Algebras Fluid Statistics Degeneracy Constraint
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/11810
专题理论物理所1978-2010年知识产出
通讯作者CHEN, YX , ZHEJIANG UNIV,INST MODERN PHYS,HANGZHOU 310027,PEOPLES R CHINA.
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CHEN, YX,MA, ZS,SU, ZB,et al. W-INFINITE SYMMETRIES IN THE HIERARCHICAL QUASI-PARTICLE STATES (LOWEST LANDAU-LEVEL STATES) OF THE FRACTIONAL QUANTUM HALL SYSTEMS[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,1995,9(2):195-219.
APA CHEN, YX,MA, ZS,SU, ZB,&CHEN, YX , ZHEJIANG UNIV,INST MODERN PHYS,HANGZHOU 310027,PEOPLES R CHINA..(1995).W-INFINITE SYMMETRIES IN THE HIERARCHICAL QUASI-PARTICLE STATES (LOWEST LANDAU-LEVEL STATES) OF THE FRACTIONAL QUANTUM HALL SYSTEMS.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,9(2),195-219.
MLA CHEN, YX,et al."W-INFINITE SYMMETRIES IN THE HIERARCHICAL QUASI-PARTICLE STATES (LOWEST LANDAU-LEVEL STATES) OF THE FRACTIONAL QUANTUM HALL SYSTEMS".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 9.2(1995):195-219.
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