Two-Roton Bound State in the Fractional Quantum Hall Effect
arXiv:cond-mat/0004479 · doi:10.1103/PhysRevLett.84.5576
Abstract
The true nature of the lowest-energy, long-wavelength neutral excitation of the fractional quantum Hall effect has been a long outstanding problem. In this Letter, we establish that it is a two-roton bound state.
4 pages, 4 figures; Physical Review Letters, in press