Single-Qubit Gates For Ensemble Qubits Using Off-Resonant Raman Interaction R.A. Akhmedzhanov, L.A. Gushchin, A.A. Kalachev, A.G. Litvak, D.A. Sobgayda and I.V. Zelensky EPJ Web of Conferences, 103 (2015) 03011 Published online: 25 September 2015 DOI: 10.1051/epjconf/201510303011