Two kinds of cooperative effects are discussed for two-level atoms (qubits) interacting with an electromagnetic resonator, both of them concerning Dicke super-radiance. The first is a static, critical phenomenon: the so-called super-radiant phase transition, occurring when a large number of qubits are coupled to a single cavity mode giving rise to a quantum phase transition for a critical value of the interaction strength. The second is a dynamic phenomenon, producing (among other effects) the generation and/or preservation of entanglement between qubits even in the presence of cavity losses.
|Publication status||Published - 30 Sep 2010|
Plastina, F., Falcone, G., Francica, F., Liberti, G., Piperno, F., & Maniscalco, S. (2010). Cavity-induced quantum cooperative phenomena. Physica Scripta, 2010(T140), . https://doi.org/10.1088/0031-8949/2010/T140/014008