Efficient Universal Leakage Elimination for Physical and Encoded Qubits

L. -A. Wu; M. S. Byrd; D. A. Lidar

doi:10.1103/physrevlett.89.127901

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Efficient Universal Leakage Elimination for Physical and Encoded Qubits

L. -A. Wu·M. S. Byrd·D. A. Lidar

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Abstract

Decoherence-induced leakage errors can couple a physical or encoded qubit to other levels, thus potentially damaging the qubit. They can therefore be very detrimental in quantum computation and require special attention. Here we present a general method for removing such errors by using simple decoupling and recoupling pulse sequences. The proposed gates are experimentally accessible in a variety of promising quantum computing proposals.

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L. -A. Wu, M. S. Byrd, D. A. Lidar. 2002-02-27. Efficient Universal Leakage Elimination for Physical and Encoded Qubits. https://doi.org/10.1103/physrevlett.89.127901

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