Exact results on decoherence and entanglement in a cavity QED system of N driven atoms and one dissipative field mode
Matteo Bina, Federico Casagrande, ALFREDO LULLI · International Conference on Quantum Information · 2008
The general solution allows investigating and monitoring decoherence, entanglement and purity of the system and the subsystems. Particular entangled atomic states can be frozen in decoherence-free subspaces for quantum information purposes.