Resonant cancellation of off-resonant effects in a multilevel qubit
- 16 October 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 62 (5) , 050301
- https://doi.org/10.1103/physreva.62.050301
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.Keywords
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