Quantum 2025 – wissenschaftliches Programm
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TUE: Tuesday Contributed Sessions
TUE 5: QIP Certification and Benchmarking
TUE 5.7: Vortrag
Dienstag, 9. September 2025, 15:45–16:00, ZHG010
A digital twin of atomic ensemble quantum memories — •Elizabeth Robertson1, Benjamin Maass1, Konrad Tschernig1, and Janik Wolters1,2,3,4 — 1Institute of Space Research, German Aerospace Center, Berlin, Germany — 2nstitutes of Physics, Technische Universität Berlin, Berlin, Germany — 3Einstein Center Digital Future (ECDF) Berlin, Germany — 4AQLS UG Haftungsbeschränkt, Germany
Performance estimation of experimentally demonstrated quantum memories is key for their deployment in quantum communication and quantum computing networks [1]. While existing platforms like Qiskit and Strawberry Fields enable quantum simulations, they do not natively account for the lossy and noisy nature of physical devices. We present a practical framework for modeling ensemble-based atomic quantum memories using the quantum channel formalism. By representing several state-of-the-art experimental memories with Kraus operators, we highlight key performance metrics of each of the memories and enable direct comparison between them. We further demonstrate the utility of this approach by simulating a memory-assisted quantum token protocol for authentication, for different experimentally demonstrated memories [2]. [1] Gündoğan, M. et al. Proposal for space-borne quantum memories for global quantum networking. npj Quantum Inf 7, 128 (2021) [2] Manuscript in preparation.
Keywords: Quantum memories; Digital twin; Atomic vapor memory; Channel formalism