Colmenar, R. K. L.Kestner, J. P.2018-11-082018-11-082018-10-09R. K. L. Colmenar, J. P. Kestner , Stroboscopically Robust Gates For Capacitively Coupled Singlet-Triplet Qubits, Condensed Matter, Mesoscale and Nanoscale Physics, 2018, https://arxiv.org/abs/1810.04208http://hdl.handle.net/11603/11907Recent work on Ising-coupled double-quantum-dot spin qubits in GaAs with voltage-controlled exchange interaction has shown improved two-qubit gate fidelities from the application of oscillating exchange along with a strong magnetic field gradient between adjacent dots. By examining how noise propagates in the time-evolution operator of the system, we find an optimal set of parameters that provide passive stroboscopic circumvention of errors in two-qubit gates to first order. We predict over 99% two-qubit gate fidelities in the presence of quasistatic and 1/f noise, which is an order of magnitude improvement over the typical unoptimized implementation.11 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.StroboscopicallyRobust GatesSinglet-Triplet Qubitstime-evolutionText