487 citations
- National University of SingaporeSG147 papers
- Centre for Quantum TechnologiesSG36 papers
- UMI MajuLabSG29 papers
- Centre National de la Recherche ScientifiqueFR25 papers
- Nanyang Technological UniversitySG19 papers
- University of MissouriUS11 papers
- Sorbonne UniversitéFR10 papers
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9 papers · 1 filter
Spectral functions of the honeycomb lattice with both the Hubbard and long-range Coulomb Interactions
Ho-Kin Tang, Indra Yudhistira, Udvas Chattopadhyay +4
The absence of screening of the non-local Coulomb interaction in Dirac systems at charge neutrality leads to the breakdown of the Fermi liquid and divergence of the Fermi velocity.…
Extended magic phase in twisted graphene multilayers
D. C. W. Foo, Z. Zhan, Mohammed M. Al Ezzi +3
Theoretical and experimental studies have verified the existence of ``magic angles'' in twisted bilayer graphene, where the twist between layers gives rise to flat bands and conseq…
High conductivity from cross-band electron pairing in flat-band systems
Maxim Trushin, Liangtao Peng, Gargee Sharma +2
Electrons in condensed matter may transition into a variety of broken-symmetry phase states due to electron-electron interactions. Applying diverse mean-field approximations to the…
Engineering many-body quantum Hamiltonians with non-ergodic properties using quantum Monte Carlo
Nyayabanta Swain, Ho-Kin Tang, Darryl Chuan Wei Foo +5
We present a computational framework to identify Hamiltonians of interacting quantum many-body systems that host non-ergodic excited states. We combine quantum Monte Carlo simulati…
Response to Comment on "The role of electron-electron interactions in two-dimensional Dirac fermions"
Ho-Kin Tang, J. N. Leaw, J. N. B. Rodrigues +4
Hesselmann {\it et al}.~question one of our conclusions, namely, the suppression of Fermi velocity at the Gross-Neveu critical point for the specific case of vanishing long-range i…
Universal Fermi-surface anisotropy renormalization for interacting Dirac fermions with long-range interactions
Jia Ning Leaw, Ho-Kin Tang, Maxim Trushin +2
Recent experimental and numerical evidence suggest an intriguing universal relationship between the Fermi surface anisotropy of the non-interacting parent two-dimensional electron…