Pseudospin Quantum Computation in Semiconductor Nanostructures
arXiv:cond-mat/0304225 · doi:10.1103/PhysRevLett.91.167903
Abstract
We theoretically show that spontaneously interlayer-coherent bilayer quantum Hall droplets should allow robust and fault-tolerant pseudospin quantum computation in semiconductor nanostructures with voltage-tuned external gates providing qubit control and a quantum Ising Hamiltonian providing qubit entanglement. Using a spin-boson model we estimate decoherence to be small $(\sim 10^{-5})$.
5 pages, 3 figures New version to appear in PRL