15 papers
Controlling rotations of magnetically levitated superconductors
Fynn Köller, Dominik Maile, Joachim Ankerhold +3
Magnetically trapped type-I superconductors are promising candidates for precision experiments at the quantum-to-classical borderline, with applications in quantum sensing of force…
Continuous Tuning of the Charge-Phase Uncertainty in a Josephson Junction
Irena Padniuk, Xianzhe Zeng, Juan Carlos Cuevas +3
Quantum mechanics constrains conjugate observables from being simultaneously measurable with arbitrary precision. In a Josephson junction, these are the transferred electric charge…
Diode Effect in Nonlinear High-Kinetic-Inductance Transmission Line Resonators
Niklas Gaiser, Ciprian Padurariu, Björn Kubala +2
High-kinetic-inductance (HKI) transmission lines provide a promising platform for compact nonlinear superconducting microwave devices. Existing theoretical descriptions are typical…
Unconventional Thermalization of a Three-Wave-Mixing Model
Evangelos Varvelis, Miriam Resch, Joachim Ankerhold
The paper investigates a long-range three-body interacting model realized in a microwave cavity, finding that despite integrable energy level statistics the system shows ergodic dy…
Anomalous Dissipation in Current Biased Josephson Systems
Johannes Hauff, Niklas Gaiser, Joachim Ankerhold +1
The paper theoretically studies how embedding a current‑biased Josephson junction in a resistor‑capacitor circuit creates anomalous dissipation that dramatically alters phase‑diffu…
Entanglement dynamics and performance of two-qubit gates for superconducting qubits under non-Markovian effects
Kiyoto Nakamura, Joachim Ankerhold
Within a numerically exact simulation technique, the dissipative dynamics of a two-qubit architecture is considered in which each qubit couples to its individual noise source (rese…