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FM: Fall Meeting

FM 41: Poster: Quantum Sensing

FM 41.25: Poster

Dienstag, 24. September 2019, 16:30–18:30, Tents

Quantum sensing with superconducting microwave circuits — •Matti Partanen¹, Kirill G. Fedorov^1,2, Stefan Pogorzalek^1,2, Michael Renger^1,2, Qi-Ming Chen^1,2, Achim Marx¹, Frank Deppe^1,2,3, and Rudolf Gross^1,2,3 — ¹Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany — ²Physik-Department, Technische Universität München, 85748 Garching, Germany — ³Munich Center for Quantum Science and Technology (MCQST), Schellingstr. 4, 80799 Munich, Germany

Quantum mechanics offers intriguing opportunities for sensing applications with accuracies beyond the classically obtainable limits. An especially interesting approach is based on using entangled microwave photons for radar applications. Here, we discuss a novel frequency-degenerate scheme for quantum sensing with superconducting microwave circuits. The same microwave regime is utilized in conventional radars owing to the transparency window of the atmosphere. Hence, our scheme suffers no conversion losses and, therefore, is promising for future real-world applications.

We acknowledge the support by the Germany's Excellence Strategy EXC-2111-390814868, Elite Network of Bavaria through the program ExQM, and the European Union via the Quantum Flagship project QMiCS (Grant No. 820505).