%0 Journal Article %J Physical Review A %D 2013 %T Individual Addressing in Quantum Computation through Spatial Refocusing %A Chao Shen %A Zhe-Xuan Gong %A Luming Duan %X Separate addressing of individual qubits is a challenging requirement for scalable quantum computation, and crosstalk between operations on neighboring qubits remains as a significant source of noise for current experimental implementation of multi-qubit platforms. We propose a scheme based on spatial refocusing from interference of several coherent laser beams to significantly reduce the crosstalk noise for any type of quantum gates. A general framework is developed for the spatial refocusing technique, in particular with practical Gaussian beams, and we show under typical experimental conditions, the crosstalk-induced infidelity of quantum gates can be reduced by several orders of magnitude with a moderate cost of a few correction laser beams. %B Physical Review A %V 88 %8 2013/11/21 %G eng %U http://arxiv.org/abs/1305.2798v3 %N 5 %! Phys. Rev. A %R 10.1103/PhysRevA.88.052325