J. Rakonjac, Dario Lago-Rivera, Alessandro Seri, M. Mazzera, S. Grandi, H. de Riedmatten
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Entanglement between a telecom photon and a spin-Wave solid-state multimode quantum memory
We demonstrate entanglement between a telecom photon and a solid-state multimode quantum memory. The entanglement is maintained for an optical excitation (with a fidelity high enough to violate a Bell inequality) and a spin-wave excitation.