We develop a mean-field theory of a novel Kondo effect emerging in systems without a
Fermi surface, which instead emerges under strong magnetic fields. We determine the …

We establish the universal torus low-energy spectra at the free Dirac fixed point and at the
strongly coupled chiral Ising fixed point and their subtle crossover behavior in the Gross …

We investigate competition and cooperation of magnetic frustration and the Kondo effect in
the J 1-J 2 Kondo lattice model on the square lattice at zero temperature. In this model, the …

Fictitious magnetic fields can be introduced in quantum magnets by strain engineering and
the Aharonov-Casher effect. Here, we study impacts of a uniform fictitious magnetic field and …

We prove the Lieb-Schultz-Mattis theorem on the energy spectrum of a general two-or three-
dimensional quantum many-body system with the U (1) particle number conservation and …

We investigate the phase diagram of spinless fermions on a square lattice with nearest-
neighbor interaction, using the recently developed projective truncation approximation in …

We carefully study how the fermion-fermion interactions affect the low-energy states of a two-
dimensional spin-1/2 fermionic system on the kagomé lattice with a quadratic band crossing …

The integer quantum Hall states at fillings ν= 0 and| ν|= 1 in monolayer graphene have
drawn much attention as they are generated by electron-electron interactions. Here we …

Exploring the Quantum Phase Transition of Strongly Correlated Massless Dirac Fermions |
JPSJ News and Comments [Login] [Register] Cart Japanese Physical Society Advanced …

We study orbital diamagnetism at zero temperature in (2+ 1)-dimensional Dirac fermions
with a short-range interaction which exhibits a quantum phase transition to a charge density …