TY - JOUR
T1 - Hybrid quantum processors
T2 - Molecular ensembles as quantum memory for solid state circuits
AU - Rabl, P.
AU - Demille, D.
AU - Doyle, J. M.
AU - Lukin, M. D.
AU - Schoelkopf, R. J.
AU - Zoller, P.
PY - 2006
Y1 - 2006
N2 - We investigate a hybrid quantum circuit where ensembles of cold polar molecules serve as long-lived quantum memories and optical interfaces for solid state quantum processors. The quantum memory realized by collective spin states (ensemble qubit) is coupled to a high-Q stripline cavity via microwave Raman processes. We show that, for convenient trap-surface distances of a few μm, strong coupling between the cavity and ensemble qubit can be achieved. We discuss basic quantum information protocols, including a swap from the cavity photon bus to the molecular quantum memory, and a deterministic two qubit gate. Finally, we investigate coherence properties of molecular ensemble quantum bits.
AB - We investigate a hybrid quantum circuit where ensembles of cold polar molecules serve as long-lived quantum memories and optical interfaces for solid state quantum processors. The quantum memory realized by collective spin states (ensemble qubit) is coupled to a high-Q stripline cavity via microwave Raman processes. We show that, for convenient trap-surface distances of a few μm, strong coupling between the cavity and ensemble qubit can be achieved. We discuss basic quantum information protocols, including a swap from the cavity photon bus to the molecular quantum memory, and a deterministic two qubit gate. Finally, we investigate coherence properties of molecular ensemble quantum bits.
UR - http://www.scopus.com/inward/record.url?scp=33746255941&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.97.033003
DO - 10.1103/PhysRevLett.97.033003
M3 - Article
AN - SCOPUS:33746255941
SN - 0031-9007
VL - 97
JO - Physical Review Letters
JF - Physical Review Letters
IS - 3
M1 - 033003
ER -