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TT: Fachverband Tiefe Temperaturen

TT 11: Superconductivity: Poster

TT 11.34: Poster

Montag, 17. März 2025, 15:00–18:00, P4

Vacuum Correlations in Superconducting Quantum Circuits — •Gesa Dünnweber^1,2,3 and Peter Rabl^1,2,3 — ¹Technical University of Munich, TUM School of Natural Sciences, Physics Department, 85748 Garching, Germany — ²Walther-Meißner-Institut, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany — ³Munich Center for Quantum Science and Technology (MCQST), 80799 Munich, Germany

When the quantum vacuum is subjected to time-varying boundary conditions, its inherent fluctuations can be parametrically amplified to create photonic excitations. This phenomenon, known as the dynamical Casimir effect, has been experimentally realized in superconducting quantum devices. Building on these results, we theoretically investigate the correlations induced in such circuits by quantum vacuum interactions. In particular, we analyze a system featuring controlled time-dependence across multiple components and consider potential technological applications.

Keywords: Dynamical Casimir effect; Correlations; Circuit QED