|Small Length Scale Studies of Fractional Quantum Hall States and their Potential Use in Topological Quantum Computation |
Physics and Astronomy
|Robert Willett, Bell Laboratories, Alcatel-Lucent|
4:00 PM, Serin E385
At low temperatures and high magnetic fields, fractional quantum Hall states arise in high purity two dimensional electron systems due to electron correlation effects. The excitations of some of these states are purported to possess novel statistics that may allow their use as components for performing topological quantum computation operations. In this talk we will review the semiconductor heterostructures employed to achieve these correlated states and the properties of the various fractional quantum Hall quasiparticles. Necessary steps toward quantum computation include confinement of the correlated states and manipulation of the quasiparticles: our experimental efforts to achieve this confinement and manipulation will be discussed.