Optimal quantum gates for semiconductor qubits
arXiv:cond-mat/0701323
Abstract
We employ optimal control theory to design optimized quantum gates for solid-state qubits subject to decoherence. At the example of a gate-controlled semiconductor quantum dot molecule we demonstrate that decoherence due to phonon couplings can be strongly suppressed. Our results suggest a much broader class of quantum control strategies in solids.
5 pages, 3 figures