Single Atom - Single Photon Interaction: from Bad-Cavity QED to Remote Entanglement
Jürgen Eschner, Markus Hennrich, Felix Rohde, Carsten Schuck, Marc Almendros, Roger Gehr, Pavel A. Bushev, D. Rotter, Christoph Raab, François Dubin, Manas Mukherjee, Christoph Becher, Ferdinand Schmidt‐Kaler, R. Blatt · 2007
We describe a series of experiments showing how a single trapped ion, which interacts with its own resonance fluorescence via a distant mirror, exhibits cavity-QED effects such as modified spontaneous emission, level shifts, and even mechanical forces. The same interaction is used to establish feedback on the ion's quantum motion, providing additional cooling and phase stabilisation of its vibration in the trap. Based on these methods and results we present an experiment dedicated at creating entanglement between two distant ions by projective measurements.