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Resonant cancellation of off-resonant effects in a multilevel qubit

Lin Tian·Seth Lloyd
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Abstract

Off-resonant effects are a significant source of error in quantum computation. This paper presents a group theoretic proof that off-resonant transitions to the higher levels of a multilevel qubit can be completely prevented in principle. This result can be generalized to prevent unwanted transitions due to qubit-qubit interactions. A simple scheme exploiting dynamic pulse control techniques is presented that can cancel transitions to higher states to arbitrary accuracy.

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Lin Tian, Seth Lloyd. 2000-03-10. Resonant cancellation of off-resonant effects in a multilevel qubit. https://doi.org/10.1103/physreva.62.050301

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