TY - JOUR
T1 - Improved light-matter interaction for storage of quantum states of light in a thulium-doped crystal cavity
AU - Davidson, Jacob H.
AU - Lefebvre, Pascal
AU - Zhang, Jun
AU - Oblak, Daniel
AU - Tittel, Wolfgang
PY - 2020
Y1 - 2020
N2 - We design and implement an atomic frequency comb quantum memory for 793-nm wavelength photons using a monolithic cavity based on a thulium- (Tm-) doped Y3Al5O12 crystal. Approximate impedance matching results in the absorption of 90% of input photons and a memory efficiency of (27.5±2.7)% over a 500-MHz bandwidth. The cavity enhancement leads to a significant improvement over the previous efficiency in Tm-doped crystals using a quantum memory protocol. In turn, this allows us to store and recall quantum states of light in such a memory. Our results demonstrate progress toward efficient and faithful storage of single-photon qubits with a large time-bandwidth product and multimode capacity for quantum networking.
AB - We design and implement an atomic frequency comb quantum memory for 793-nm wavelength photons using a monolithic cavity based on a thulium- (Tm-) doped Y3Al5O12 crystal. Approximate impedance matching results in the absorption of 90% of input photons and a memory efficiency of (27.5±2.7)% over a 500-MHz bandwidth. The cavity enhancement leads to a significant improvement over the previous efficiency in Tm-doped crystals using a quantum memory protocol. In turn, this allows us to store and recall quantum states of light in such a memory. Our results demonstrate progress toward efficient and faithful storage of single-photon qubits with a large time-bandwidth product and multimode capacity for quantum networking.
UR - http://www.scopus.com/inward/record.url?scp=85084927620&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.101.042333
DO - 10.1103/PhysRevA.101.042333
M3 - Article
AN - SCOPUS:85084927620
VL - 101
JO - Physical Review A: covering atomic, molecular, and optical physics and quantum information
JF - Physical Review A: covering atomic, molecular, and optical physics and quantum information
SN - 2469-9926
IS - 4
M1 - 042333
ER -