Ottaviani, Carlo, Simon, Christoph, De Riedmatten, Hugues, Afzelius, Mikael, Lauritzen, Bjoern, Sangouard, Nicolas, ...
The creation of single collective excitations in atomic ensembles via spontaneous Raman emission plays a key role in several quantum communication protocols, starting with the seminal DLCZ protocol...
Cross phase modulation in a five--level atomic medium: Semiclassical theory (2005)
Ottaviani, Carlo, Rebic, Stojan, Vitali, David, Tombesi, Paolo
The interaction of a five-level atomic system involving electromagnetically induced transparency with four light fields is investigated. Two different light-atom configurations are considered, and...
Polarization qubit phase gate in driven atomic media (2003)
Ottaviani, Carlo, Vitali, David, Artoni, Maurizio, Cataliotti, Francesco, Tombesi, Paolo
We present here an all--optical scheme for the experimental realization of a quantum phase gate. It is based on the polarization degree of freedom of two travelling single photon wave-packets and...