193 citations · 894 across the 43 of their papers we have counts for
43 papers
Mutual information and correlations across topological phase transitions in topologically ordered graphene zigzag nanoribbons
In-Hwan Lee, Hoang-Anh Le, S. -R. Eric Yang
Graphene zigzag nanoribbons, initially in a topologically ordered state, undergo a topological phase transition into crossover phases distinguished by quasi-topological order. We c…
Phase Diagram and Crossover Phases of Topologically Ordered Graphene Zigzag Nanoribbons: Role of Localization Effects
Hoang Anh Le, In Hwan Lee, Young Heon Kim +1
We computed the phase diagram of the zigzag graphene nanoribbons as a function of on-site repulsion, doping, and disorder strength. The topologically ordered phase undergoes topolo…
New disordered anyon phase of doped graphene zigzag nanoribbon
Young Heon Kim, Hye Jeong Lee, Hyng-Yong Lee +1
We investigate interacting disordered zigzag nanoribbons at low doping, using the Hubbard model to treat electron interactions within the density matrix renormalization group and H…
Topological entanglement entropy of interacting disordered zigzag graphene ribbons
Young Heon Kim, Hye Jeong Lee, S. -R. Eric Yang
Interacting disordered zigzag graphene nanoribbons have fractional charges, are quasi-one-dimensional, and display an exponentially small gap. Our numerical computations showed tha…
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 charges in graphene nanoribbon and polyacetylene: similarities and differences
S. -R. Eric Yang
An introductory overview of current research developments regarding solitons and fractional boundary charges in graphene nanoribbons is presented. Graphene nanoribbons and polyacet…