Motivated by recent experiments, we study a quasi-one-dimensional model of a Kondo
lattice with ferromagnetic coupling between the spins. Using bosonization and dynamical …

Metallic spin liquid has been reported in several correlated metals, but a satisfactory
theoretical description is not yet available. Here we propose a potential route to realize the …

The peculiarities in the Bose-Einstein condensation of particles and quasiparticles are
discussed. The difference between the condensation of conserved and unconserved …

Motivated by the recent discovery of a continuous ferromagnetic quantum phase transition in
CeRh6Ge4 and its distinction from other U-based heavy fermion metals such as UGe2, we …

Heavy-fermion metals typically exhibit an unconventional quantum critical point or quantum
critical phase at zero temperature due to the competition of the Kondo effect and magnetism …

Identifying the time-reversal symmetry of spins as a symplectic symmetry, we develop a
large N approximation for quantum magnetism that embraces both antiferromagnetism and …

We generalize the dynamical large-N multichannel Schwinger-boson approach to study the
quantum phase transition of a two-dimensional Kondo-Heisenberg model, relevant for …

The orientation of the order parameter of quantum magnets can be used to store information
in a dense and efficient way. Switching this order parameter corresponds to writing data. To …

Materials with non-Kramers doublet ground states naturally manifest the two-channel Kondo
effect, as the valence fluctuations are from a non-Kramers doublet ground state to an excited …

The recent discovery of high-temperature superconductivity in La 3 Ni 2 O 7 under high
pressure has stimulated intensive investigations concerning its paring mechanism and a …