Double feature: A Quantum Network Node with Crossed Fiber Cavities (M.Sc. Manuel Brekenfeld)
- Date: Oct 15, 2019
- Time: 02:30 PM (Local Time Germany)
- Speaker: M.Sc. Manuel Brekenfeld
- Quantum Dynamics Division - MPQ
- Location: Max Planck Institute of Quantum Optics
- Room: Herbert Walther Lecture Hall
We have set up a new experiment which combines these two experimental advancements in a single platform with single neutral atoms trapped at the center of two crossed FFPCs. Exploiting the possibilities provided by the new system, we have realized a quantum network node that couples to two spatially and spectrally distinct quantum channels. The node functions as a passive, heralded and high-fidelity quantum memory that requires neither amplitude- and phase-critical control fields [4] nor error-prone feedback loops [5] and is thus excellently suited for the realization of large-scale quantum networks and quantum repeaters.
[1] Hunger et al., New J. Phys. 12, 065038 (2010) [2] Leonard et al., Nature 543, 87 (2017) [3] Hamsen et al., Nat. Phys. 14, 885 (2018) [4] Specht et al., Nature 473, 190 (2011) [5] Kalb et al., Phys. Rev. Lett. 114, 220501 (2015)