Thouless pumping in Josephson junction arrays
arXiv:2308.13597 · doi:10.21468/SciPostPhys.16.3.083
Abstract
Recent advancements in fabrication techniques have enabled unprecedented clean interfaces and gate tunability in semiconductor-superconductor heterostructures. Inspired by these developments, we propose protocols to realize Thouless quantum pumping in electrically tunable Josephson junction arrays. We analyze, in particular, the implementation of the Rice-Mele and the Harper-Hofstadter pumping schemes, whose realization would validate these systems as flexible platforms for quantum simulations. We investigate numerically the long-time behavior of chains of controllable superconducting islands in the Coulomb-blockaded regime. Our findings provide new insights into the dynamics of periodically driven interacting systems and highlight the robustness of Thouless pumping with respect to boundary effects typical of superconducting circuits.
26 pages, 12 figures
References in corpus (15)
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- Topological characterization of periodically-driven quantum systems
- Epitaxy of Semiconductor-Superconductor nanowires
- Exploring 4D Quantum Hall Physics with a 2D Topological Charge Pump
- Disorder-induced Floquet Topological Insulators
- Thouless pumping and topology
- Transparent Semiconductor-Superconductor Interface and Induced Gap in an Epitaxial Heterostructure Josephson Junction
- Experimental determination of the Berry phase in a superconducting charge pump
- Gate Tunable Josephson Diode in Proximitized InAs Supercurrent Interferometers
- Nanoampere pumping of Cooper pairs
- Simulating Chern insulators on a superconducting quantum processor
- Dynamical vortex transitions in a gate-tunable Josephson junction array
- Phonon-induced breakdown of Thouless pumping in the Rice-Mele-Holstein model
- Spin-resolved spectroscopy using a quantum dot defined in InAs 2DEG
- Fractional transconductance via non-adiabatic topological Cooper pair pumping