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QI: Fachverband Quanteninformation

QI 24: Verification and Benchmarking of Quantum Systems

QI 24.13: Vortrag

Donnerstag, 21. März 2024, 13:00–13:15, HFT-TA 441

Overcoming scalability bottlenecks of detecting quantum entanglement — •Daniel Miller¹, Lukas Postler², Antonio Anna Mele¹, Kyano Levi¹, Christian Marciniak², Ivan Pogorelov², Milena Guevara-Bertsch², Alex Steiner², Robert Freund², Rainer Blatt^2,3, Philipp Schindler², Jose Carrasco², Martin Ringbauer², Thomas Monz^2,4, and Jens Eisert¹ — ¹Freie Universität Berlin — ²Universität Innsbruck — ³IQOQI — ⁴AQT

Concomitant with the rapid development of architectures in quantum technologies, increasingly sophisticated methods of quantum system identification are being developed. Mature schemes of quantum system identification should be (i) sample efficient in the system size, including an (ii) efficient classical post-processing, must be (iii) provably robust under realistic error models for a large class of states and (iv) should solely rely on experimentally feasible capabilities when resorting to quantum data processing. In this work, we identify sufficient requirements on the quality of a quantum device to permit provably scalable entanglement detection. Our proof is enabled by novel techniques that further strengthen the already deep connection between the theories of quantum entanglement and quantum error correction.

Keywords: entanglement; scalability; near-term; quantum memories; ion traps