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QI: Fachverband Quanteninformation

QI 3: Quantum Simulation

QI 3.12: Talk

Monday, March 9, 2026, 18:15–18:30, BEY/0137

Scrambling the Information of Transmons using Interaction by Metamaterials — •Arne Schlabes and Mohammad Ansari — Forschungszentrum Jülich

Transmission lines made of capacitors in series and inductors to the ground form so called metamaterials with inverse dispersion relations. These Left-Handed materials allow for a multi-mode interaction of transmons coupled to the resonator. We use flux tunable qubits and parametric driving to excite resonator mode states. This occupation can be spread controllably from the resonator to a qubit and back to other resonator states. With this we realize a scrambling of information which started locally in one resonator state but is then encoded non-locally in multiple states. The precise composition of the final state depends on the parameters used to encode it, without them the initial state can not be recovered.

Keywords: Transmon; Metamaterials; Information Scrambling; Quantum Walk