Collective mode of semion systems. (Reannouncement with new availability information)
Technical Report
·
OSTI ID:177469
The ground and the excited states of a two-dimensional anyon system are studied via finite-size numerical calculations and single-mode approximation In a spherical geometry. It is shown that Laughlin`s mean field theory gives an accurate description of the ground state properties. We find, consistent with earlier analytic theories, that the collective mode of the system exhibits a linear dispersion in the long wavelength limit, and predict a novel roton minimum at a finite value of the wavenumber q. We also discuss the consequences on the anyon spectrum of having a model repulsive interaction between the particles.
- Research Organization:
- Maryland Univ., College Park, MD (United States). Dept. of Physics
- OSTI ID:
- 177469
- Report Number(s):
- AD-A-254986/3/XAB; CNN: Contract DAAL03-89-K-0026; TRN: 60110578
- Resource Relation:
- Other Information: PBD: 1991
- Country of Publication:
- United States
- Language:
- English
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