4 papers · 1 filter
Defect mediated quantum melting of charge ordered insulators
Abijith Krishnan, Ajesh Kumar, T. Senthil
Two-dimensional (2d) electronic systems on a lattice at fractional filling exhibit a competition between charge ordered insulators, called Wigner-Mott insulators (WMIs), a…
Higgs-mode electromagnon in the spin-spiral multiferroic CuBr
Bryan T. Fichera, Ajesh Kumar, Baiqing Lv +8
Below a continuous symmetry breaking phase transition, the relevant collective excitations are due to longitudinal and transverse fluctuations of the order parameter, which are ref…
Non-Fermi Liquids from Subsystem Symmetry Breaking in van der Waals Multilayers
Archisman Panigrahi, Ajesh Kumar
We investigate the spontaneous breaking of subsystem symmetry in a stack of two-dimensional Fermi liquid metals, each maintaining a subsystem number conservation symmetry, driven b…
Unconventional superconductivity mediated by exciton density wave fluctuations
Ajesh Kumar, Adarsh S. Patri, T. Senthil
Synthetic platforms afford an unparalleled degree of controllability in realizing strongly-correlated phases of matter. In this work, we study the possibility of electrically tunab…