Reduced Sensitivity to Charge Noise in Semiconductor Spin Qubits via Symmetric Operation. - Reed MD; Maune BM; Andrews RW; Borselli MG; Eng K; Jura MP; Kiselev AA; Ladd TD; Merkel ST; Milosavljevic I; Pritchett EJ; Rakher MT; et al. (Physical review letters, 2016)