Reconfigurable valley topological QED platform for qubit operation

Multifarious topological crystals are extensively explored because of their unique advantages in manipulating wave transport and immunity against local perturbations. Most of them are studied, however, in feature-fixed systems and therefore, commonly have a challenge in application that requires tunability, such as quantum switches, tunable quantum routers, and quantum storage and reading. Here, we theoretically suggest a reconfigurable valley topological quantum electrodynamics (QED) platform scheme based on the honeycomb lattice of Jaynes-Cummings emitters, which can be implemented by cavity- or circuit-QED cells. Based on such a reconfigurable platform, this work first designs a tunable topological quantum router and then demonstrates how to achieve topological quantum storage and reading in theory. They both signify the remarkable potential of the suggested reconfigurable topological QED platform for qubit operation.