118 citations · 559 across the 24 of their papers we have counts for
23 papers
Entanglement Properties of the One-Dimensional Dimerized Fermi-Hubbard Model
Min-Chul Cha, Hoon Beom Kwon, Ji-Woo Lee +1
We study the entanglement properties of the one-dimensional dimerized Fermi-Hubbard model. Using a matrix-product-state approach, we compute the ground state and identify two insul…
Topologically ordered zigzag nanoribbon: fractional edge charge, spin-charge separation, and ground state degeneracy
S. -R. Eric Yang, Min-Chul Cha, Hye Jeong Lee +1
We numerically compute the density of states (DOS) of interacting disordered zigzag graphene nanoribbon (ZGNR) having midgap states showing fractional edge charges. The compu…
Soliton fractional charge of disordered graphene nanoribbon
Y. H. Jeong, S. -R. Eric Yang, M. -C. Cha
We investigate the properties of the gap-edge states of half-filled interacting disordered zigzag graphene nanoribbons. We find that the midgap states can display the quantized fra…
Finite entanglement properties in the matrix product states of the one-dimensional Hubbard model
Min-Chul Cha
We study the effects due to limited entanglement in the one-dimensional Hubbard model by representing the ground states in the form of the matrix product states. Finite-entanglemen…
Hidden Criticality of Counterion Condensation Near a Charged Cylinder
Minryeong Cha, Juyeon Yi, Yong Woon Kim
We study the condensation transition of counterions on a charged cylinder via Monte Carlo simulations. Varying the cylinder radius systematically in relation to the system size, we…
Continuous and reversible tuning of the disorder-driven superconductor-insulator transition in bilayer graphene
Gil-Ho Lee, Dongchan Jeong, Kee-Su Park +3
The influence of static disorder on a quantum phase transition (QPT) is a fundamental issue in condensed matter physics. As a prototypical example of a disorder-tuned QPT, the supe…