All-optical controlled phase gate in quantum dot molecules
  We propose a two-qubit optically controlled phase gate in quantum dot molecules via adiabatic passage and hole tunneling. Our proposal combines the merits of the current generation of vertically stacked self-assembled InAs quantum dots and adiabatic passage. The simulation shows an implementation of the gate with a fidelity exceeding 0.98. 
Li-Bo Chen and Wen Yang
quant-ph cond-mat.mes-hall