We investigate how photo-induced topological phase transitions and the magnetic-field-induced quantum Hall effect simultaneously influence the Casimir force between two parallel sheets of staggered two-dimensional (2D) materials of the graphene family. We show that the interplay between these two effects enables on-demand switching of the force between attractive and repulsive regimes while keeping its quantized characteristics. We also show that doping these 2D materials below their first Landau level allows one to probe the photoinduced topology in the Casimir force without the difficulties imposed by a circularly polarized laser. We demonstrate that the magnetic field has a huge impact on the thermal Casimir effect for dissipationless materials, where the quantized aspect of the energy levels leads to a strong repulsion that could be measured even at room temperature.
Photonics in Flatland: Challenges and Opportunities for Nanophotonics with 2D Semiconductors
Brandenburg University of Technology（勃兰登堡工业大学）；ICFO - The Institute of Photonic Sciences（光子科学研究所）；University Carlos III of Madrid（马德里卡洛斯三世大学）；University of Amsterdam（阿姆斯特丹大学）；Aalto University（阿尔托大学）；Delft University of Technology（代尔夫特理工大学）；Università di Genova（热那亚大学）；The University of Sheffield（谢菲尔德大学）；Radboud University（拉德堡德大学）；Ghent University-imec（根特大学-imec）；Ghent University（根特大学）
