Independent electrical tuning of separated quantum dots in coupled   photonic crystal cavities
  Systems of photonic crystal cavities coupled to quantum dots are a promising architecture for quantum networking and quantum simulators. The ability to independently tune the frequencies of laterally separated quantum dots is a crucial component of such a scheme. Here, we demonstrate independent tuning of laterally separated quantum dots in photonic crystal cavities coupled by in-plane waveguides by implanting lines of protons which serve to electrically isolate different sections of a diode structure. 
Susanna M. Thon, Hyochul Kim, Cristian Bonato, Jan Gudat, Jenna   Hagemeier, Pierre M. Petroff, Dirk Bouwmeester
cond-mat.mes-hall physics.optics quant-ph