In-reservoir coherent control of an atom-photon bound state (5 pages)

Yunan Wu, Jing Wang, Hanzhuang Zhang

Dmitri S. Mogilevtsev, S. Ya. Kilin, Solange Bessa Cavalcanti +1 more

We present the collective operator master equation for bosonic reservoirs with gaps in the density of photonic states. We show that the atom-photon bound state can be produced and controlled by the in-reservoir coherent field.

Gerard J Milburn

Dmitri S. Mogilevtsev, S. Ya. Kilin, Solange Bessa Cavalcanti +1 more

In this work we show that the atom-photon bound state (APBS) in zero-temperature structured reservoir without an external excitation is always an entangled state of two qubits. The maximal degree of achievable entanglement depends on the atomic frequency detuning from the band edge. APBS can be produced and effectively controlled by the coherent excitation of the reservoir modes with frequencies outside the gap. The proposed scheme can be used for the single-atom optical memory device.

Tracy E. Northup, A. David. Boozer, Ryan Miller +3 more

Dmitri S. Mogilevtsev, S. Ya. Kilin, Solange Bessa Cavalcanti

For the coherently controlled single-atom memory cell, a two-level atom with the transition frequency inside the gap and close to the gap edge is suggested. The atom-photon bound state (APBS) can be extensively controlled via available reservoir modes of unspoiled photonic crystal.