Quantum computation with ultracold atoms in a driven optical lattice

摘要

We propose a scheme for quantum computation in optical lattices. The qubits are encoded in the spatial wavenfunction of the atoms such that spin decoherence does not influence the computation. Quantum operations arensteered by shaking the lattice, while qubit addressability can be provided with experimentally available techniquesnof changing the lattice with single-site resolution. Numerical calculations show possible fidelities above 99%nwith gate times on the order of milliseconds.