Preserving quantum coherence using optimized open-loop control techniques
Michael J. Biercuk, Hermann Uys, Aaron Vandevender, Nobuyasu Shiga, Wayne M. Itano, John J. Bollinger
We describe experimental and theoretical studies of open-loop quantum control techniques known as dynamical decoupling (DD) for the suppression of decoherence-induced errors in quantum systems. Our experiments on trapped atomic ion qubits demonstrate that it is possible to optimize the construction of DD sequences for a given noise power spectral density. Studies of novel sequences derived analytically or through numerical optimization -- while maintaining fixed control resources -- demonstrate large gains in our ability to preserve quantum coherence in arbitrary noise.
, Uys, H.
, Vandevender, A.
, Shiga, N.
, Itano, W.
and Bollinger, J.
Preserving quantum coherence using optimized open-loop control techniques, Proc. 2010 Conf. Lasers and Electro-Optics, San Jose, CO, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903760
(Accessed November 30, 2023)