TY - JOUR
T1 - Scalable photonic network architecture based on motional averaging in room temperature gas
AU - Borregaard, Johannes
AU - Zugenmaier, Michael Viktor Alban
AU - Petersen, Jonas Meyer
AU - Shen, Heng
AU - Vasilakis, Georgios
AU - Jensen, Kasper
AU - Polzik, Eugene Simon
AU - Sørensen, Anders Søndberg
PY - 2016/4/14
Y1 - 2016/4/14
N2 - Quantum interfaces between photons and atomic ensembles have emerged as powerful tools for quantum technologies. Efficient storage and retrieval of single photons requires long-lived collective atomic states, which is typically achieved with immobilized atoms. Thermal atomic vapours, which present a simple and scalable resource, have only been used for continuous variable processing or for discrete variable processing on short timescales where atomic motion is negligible. Here we develop a theory based on motional averaging to enable room temperature discrete variable quantum memories and coherent single-photon sources. We demonstrate the feasibility of this approach to scalable quantum memories with a proof-of-principle experiment with room temperature atoms contained in microcells with spin-protecting coating, placed inside an optical cavity. The experimental conditions correspond to a few photons per pulse and a long coherence time of the forward scattered photons is demonstrated, which is the essential feature of the motional averaging.
AB - Quantum interfaces between photons and atomic ensembles have emerged as powerful tools for quantum technologies. Efficient storage and retrieval of single photons requires long-lived collective atomic states, which is typically achieved with immobilized atoms. Thermal atomic vapours, which present a simple and scalable resource, have only been used for continuous variable processing or for discrete variable processing on short timescales where atomic motion is negligible. Here we develop a theory based on motional averaging to enable room temperature discrete variable quantum memories and coherent single-photon sources. We demonstrate the feasibility of this approach to scalable quantum memories with a proof-of-principle experiment with room temperature atoms contained in microcells with spin-protecting coating, placed inside an optical cavity. The experimental conditions correspond to a few photons per pulse and a long coherence time of the forward scattered photons is demonstrated, which is the essential feature of the motional averaging.
U2 - 10.1038/ncomms11356
DO - 10.1038/ncomms11356
M3 - Journal article
C2 - 27076381
SN - 2041-1723
VL - 7
JO - Nature Communications
JF - Nature Communications
M1 - 11356
ER -