Strong correlation effects are believed to be the driving force behind many novel quantum phases and exotic phenomena, such as strange metallicity. They become pronounced when the electrostatic repulsive interaction is larger than, or at least comparable to the kinetic energy. This regime naturally materializes in f-electron-based heavy fermion metals, as well as in d-electron-based […]
Investigating charge-structure coupling in soft materials for information processing and actuation. We will discuss the thermodynamics of information, compare the efficiency of different information processing architectures (CPU vs. brain), and explore the rich physics when electrostatics, elasticity, and hydrodynamics are coupled on the nanoscale. This will be illustrated by charge-regulation in polymers, DNA packing in […]
Topology and phase transitions in twisted nodal superconductors “Twistronics” paradigm has been tremendously successful in realizing strongly correlated and topological phases of electrons in two-dimensional semiconductors or semimetals. In my talk, I will show that twisted bilayers of nodal superconductors allow a similar degree of control over the neutral quasiparticles in superconductors. […]
Liang Wu (U Penn) "Novel nonlinear optical response in PT-invariant antiferromagnets"