438 K
11 pp.
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TitleExcitons in the Fractional Quantum Hall Effect
Author(s)Laughlin, R. B.
Publication DateSeptember 1984
Report NumberUCRL-90790-Rev.1
Unique IdentifierACC0123
Other NumbersCONF-840842-36-Rev.1; Legacy ID: DE87008148; OSTI ID: 6627857
Research OrgLawrence Livermore National Laboratory [LLNL], CA (USA)
Contract NoW-7405-ENG-48
Sponsoring OrgU.S. Department of Energy (DOE)
Other Information17th International Conference on Low Temperature Physics; 15 Aug 1984; Karlsruhe, F.R. Germany
Subject656002 -- Condensed Matter Physics -- General Techniques in Condensed Matter -- (1987-); Hall Effect -- Quantum Mechanics; Dispersion Relations; Electric Conductivity; Quantum Crystals; Quasi Particles
KeywordsCrystals; Electrical Properties; Mechanics; Physical Properties
Related Web PagesRobert B. Laughlin and the Fractional Quantum Hall Effect
AbstractQuasiparticles of charge 1/m in the Fractional Quantum Hall Effect form excitons, which are collective excitations physically similar to the transverse magnetoplasma oscillations of a Wigner crystal. A variational exciton wavefunction which shows explicitly that the magnetic length is effectively longer for quasiparticles than for electrons is proposed. This wavefunction is used to estimate the dispersion relation of these excitons and the matrix elements to generate them optically out of the ground state. These quantities are then used to describe a type of nonlinear conductivity which may occur in these systems when they are relatively clean.
438 K
11 pp.
View Document 

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