Minute-Scale Photonic Quantum Memory

Demonstrates time-bin photonic-qubit storage in ${}^{151}{\mathrm{Eu}}^{3+}$:Y₂SiO₅ with a $27.6\pm 0.5\mathrm{s}$ 1/e lifetime, $88.0\pm 2.1\%$ fidelity at 5.6 s, and single-photon-level storage out to 42 s.

Links

• arXiv: 2511.12537

Zoo Links

• rare-earth-ion-qubit