Towards quantum computing with single atoms and optical cavities on atom chips

Abstract

We report on recent developments in the integration of optical microresonators into atom chips and describe some fabrication and implementation challenges. We also review theoretical proposals for quantum computing with single atoms based on the observation of photons leaking through the cavity mirrors. The use of measurements to generate entanglement can result in simpler, more robust and scalable quantum computing architectures. Indeed, we show that quantum computing with atom–cavity systems is feasible even in the presence of relatively large spontaneous decay rates and finite photon detector efficiencies.