Nanophotonic rare-earth quantum memory with optically controlled retrieval.
Tian ZhongJonathan M KindemJohn G BartholomewJake RochmanIoana CraiciuEvan MiyazonoMarco BettinelliEnrico CavalliVarun B VermaSae Woo NamFrancesco MarsiliMatthew D ShawAndrew D BeyerAndrei FaraonPublished in: Science (New York, N.Y.) (2017)
Optical quantum memories are essential elements in quantum networks for long-distance distribution of quantum entanglement. Scalable development of quantum network nodes requires on-chip qubit storage functionality with control of the readout time. We demonstrate a high-fidelity nanophotonic quantum memory based on a mesoscopic neodymium ensemble coupled to a photonic crystal cavity. The nanocavity enables >95% spin polarization for efficient initialization of the atomic frequency comb memory and time bin-selective readout through an enhanced optical Stark shift of the comb frequencies. Our solid-state memory is integrable with other chip-scale photon source and detector devices for multiplexed quantum and classical information processing at the network nodes.
Keyphrases
- molecular dynamics
- monte carlo
- energy transfer
- solid state
- working memory
- density functional theory
- high throughput
- high resolution
- high speed
- healthcare
- magnetic resonance imaging
- sentinel lymph node
- computed tomography
- early stage
- radiation therapy
- machine learning
- single cell
- lymph node
- room temperature
- social media
- neural network
- living cells