4 papers
Unnecessary quantum criticality in kagome magnets
Yunchao Zhang, Xue-Yang Song, T. Senthil
Algebraic/Dirac spin liquids (DSLs) are a class of critical quantum ground states that do not have a quasi-particle description. DSLs and related spin liquid phases often arise in…
Ordering the topological order in the fractional quantum Hall effect
Meng Cheng, Seth Musser, Amir Raz +2
We discuss the possible topological order/topological quantum field theory of different quantum Hall systems. Given the value of the Hall conductivity, we constrain the global symm…
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),…
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…