3 papers
cond-mat.str-el2025
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…
cond-mat.str-el2025
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…
cond-mat.str-el2024
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…