Pairing Symmetry Transitions in the Even-Denominator FQHE System
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概要
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Transitions from a paired quantum Hall state to another quantum Hall state in bilayer systems are discussed in the framework of the edge theory. Starting from the edge theory for the Haldane–Rezayi state, it is shown that the charging effect of a bilayer system which breaks the SU(2) symmetry of the pseudospin shifts the central charge and the conformal dimensions of the fermionic fields which describe the pseudospin sector in the edge theory. This corresponds to the transition from the Haldane–Rezayi state to Halperin's 331 state, or from a singlet d-wave to a triplet p-wave ABM type paired state in the composite fermion picture. Considering interlayer tunneling, the tunneling rate-capacitance phase diagram for the ν=5/2 paired bilayer system is discussed.
- Physical Society of Japanの論文
- 2001-12-15
著者
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Nomura Kentaro
Department Of Basic Science University Of Tokyo
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Yoshioka Daijiro
Department Of Basic Science Graduate School Of Arts And Sciences University Of Tokyo
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Nomura Kentaro
Department of Basic Science, University of Tokyo, 3-8-1 Komaba, Tokyo 153-8902
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