Physical Review Letters
Department of Physics and Astronomy
We show that open-loop dynamical control techniques may be used to synthesize unitary transformations in open quantum systems in such a way that decoherence is perturbatively compensated for to a desired (in principle arbitrarily high) level of accuracy, which depends only on the strength of the relevant errors and the achievable rate of control modulation. Our constructive and fully analytical solution employs concatenated dynamically corrected gates, and is applicable independently of detailed knowledge of the system-environment interactions and environment dynamics. Explicit implications for boosting quantum gate fidelities in realistic scenarios are addressed.
Khodjasteh K, Lidar DA, Viola L. Arbitrarily accurate dynamical control in open quantum systems. Phys Rev Lett. 2010 Mar 5;104(9):090501. doi: 10.1103/PhysRevLett.104.090501. Epub 2010 Mar 4. PMID: 20366973.
Dartmouth Digital Commons Citation
Khodjasteh, Kaveh; Lidar, Daniel A.; and Viola, Lorenza, "Arbitrarily Accurate Dynamical Control in Open Quantum Systems" (2010). Dartmouth Scholarship. 2006.