Julien LAURAT (ENS Paris)
Quantum interconnects are central to the scale up of quantum information architectures. In this endeavour, I will first report on the implementation of a highly-efficient quantum memory based on a large ensemble of cold atoms. I will discuss how we implemented such efficient memories over the recent years, from typical efficiency values of about 30% in 2015 to 70% in 2018 and close to 90% in this recent work. Moreover, we used this platform to demonstrate highly efficient and reversible entanglement transfer into and out of two quantum memories. I will also present the realization of a faithful quantum-bit-encoding converter that relies on a teleportation process based on hybrid entanglement of light between CV and DV optical qubits.
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