Transformed composite sequences for improved qubit addressing
J. True Merrill, S. Charles Doret, Grahame Vittorini, J. P. Addison, Kenneth R. Brown · Physical Review A · 2014
Selective laser addressing of a single atom or atomic ion qubit can be improved using narrow-band composite pulse sequences. We describe a Lie-algebraic technique to generalize known narrow-band sequences and introduce sequences related by dilation and rotation of sequence generators. Our method improves known narrow-band sequences by decreasing both the pulse time and the residual error. Finally, we experimentally demonstrate these composite sequences using ${}^{40}{\mathrm{Ca}}^{+}$ ions trapped in a surface-electrode ion trap.