Publications by authors named "Congwei Lu"
Topological phases are robust against weak perturbations, but break down when disorder becomes sufficiently strong. However, moderate disorder can also induce topologically nontrivial phases. Thouless pumping, as a (1+1)D counterpart of the integer quantum Hall effect, is one of the simplest manifestations of topology.
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- High-order topological phases involve systems with unique multi-dimensional properties, showing localized states on lower-dimensional boundaries and can be used in topological pumping experiments.
- The research demonstrates the creation of corner-localized states on a lattice of superconducting qubits using a process that modifies quantum interactions adiabatically.
- The team also examines how these topological pumps handle different types of disorder, providing insights into their stability and encouraging further exploration of high-order topological phases in quantum systems.