175 citations · 360 across the 10 of their papers we have counts for
10 papers
Half metals at intermediate energy scales in Anderson-type insulators
Kyung-Yong Park, Hyun-Jung Lee, Ki-Seok Kim
Although quantum phase transitions involved with Anderson localization had been investigated for more than a half century, the role of spin polarization in these metal-insulator tr…
Many-body approach to non-Hermitian physics in fermionic systems
Eunwoo Lee, Hyunjik Lee, Bohm-Jung Yang
In previous studies, the topological invariants of 1D non-Hermitian systems have been defined in open boundary condition (OBC) to satisfy the bulk-boundary correspondence. The extr…
Hartree-Fock study of an Anderson metal-insulator transition in the presence of Coulomb interaction: Two types of mobility edges and their multifractal scaling exponents
Hyun-Jung Lee, Ki-Seok Kim
In summary, we investigated the role of Coulomb interactions in the nature of eigenfunction multifractality of an Anderson metal-insulator transition, based on the Hartree-Fock app…
Thermal friction on quantum vortices in a Bose-Einstein condensate
Geol Moon, Woo Jin Kwon, Hyunjik Lee +1
We investigate the dissipative dynamics of a corotating vortex pair in a highly oblate axisymmetric Bose-Einstein condensate trapped in a harmonic potential. The initial vortex sta…
Low-energy Spin Excitation in Coexistent Phase of Antiferromagnetism and d-wave Superconductivity
Hyun-Jung Lee, Tetsuya Takimoto
Nuclear quadrupole resonance measurements have shown evidences that the heavy fermion compound CeRhIn exhibits a coexistent phase with commensurate antiferromagnetism and d-wav…
NRG for the bosonic single-impurity Anderson model: Dynamics
Hyun-Jung Lee, Krzysztof Byczuk, Ralf Bulla
The bosonic single-impurity Anderson model (B-SIAM) is studied to understand the local dynamics of an atomic quantum dot (AQD) coupled to a Bose-Einstein condensation (BEC) state,…