15 citations · 51 across the 15 of their papers we have counts for
15 papers
Fundamental limitations of single-particle Green's-function zeroes as probes of many-body topology
Emile Pangburn, Olivier Gingras
We show that topological invariants constructed from single-particle Green's functions (GFs) cannot reliably diagnose the topology of interacting many-body states. Using coupled in…
Correlated Mott semi-metal in the topological heavy fermion model
Emile Pangburn, Igor de Melo Froldi, Anurag Banerjee
The topological heavy-fermion model provides a minimal framework for describing the coexistence of localized moments and itinerant Dirac electrons in magic-angle twisted bilayer gr…
Probing quasiparticle excitations in a doped Mott insulator via Friedel oscillations
Anurag Banerjee, Emile Pangburn, Catherine Pépin +1
In this work, we investigate impurity-induced Friedel oscillations in the doped two-dimensional Hubbard model, focusing on the role of holon and doublon excitations. We show that w…
Impurity-induced Mott ring states and Mott zeros ring states in the Hubbard operator formalism
Emile Pangburn, Anurag Banerjee, Catherine Pépin +1
We study the formation of subgap impurity states in strongly correlated Mott insulators. We use a composite operator method that gives us access to both the bulk Green's function,…
Quasiparticle interference and spectral function of the UTe superconductive surface band
Adeline Crépieux, Emile Pangburn, Shuqiu Wang +7
We compute the (0-11) surface spectral function, the surface density of states (DOS), and the quasiparticle interference (QPI) patterns, both in the normal state and superconductin…
Odd-Parity Quasiparticle Interference in the Superconductive Surface State of UTe2
Shuqiu Wang, Kuanysh Zhussupbekov, Joseph P. Carroll +13
Although no known material exhibits intrinsic topological superconductivity, wherein spin-triplet odd-parity electron pairing occurs, UTe2 is now the leading representative of this…
Topological charge excitations and Green's function zeros in paramagnetic Mott insulators
Emile Pangburn, Catherine Pépin, Anurag Banerjee
We investigate the emergence of topological features in the charge excitations of Mott insulators in the Chern-Hubbard model. In the strong correlation regime, treating electrons a…
Charge density wave solutions of the Hubbard model in the composite operator formalism
Anurag Banerjee, Emile Pangburn, Chiranjit Mahato +2
We investigate the charge density wave phase in the strongly correlated Hubbard model without any other broken symmetry phase. Starting from the atomic Hamiltonian with no hopping,…
Spontaneous layer selective Mott phase in the bilayer Hubbard model
Emile Pangburn, Louis Haurie, Sébastien Burdin +2
Quantum materials featuring both itinerant and localized degrees of freedom exhibit numerous exotic phases and transitions that deviate from the Ginzburg-Landau paradigm. This work…
Superconductivity in twisted bilayer graphene: possible pairing symmetries, impurity-induced states and Chern number
Emile Pangburn, Miguel Alvarado, Oladunjoye A. Awoga +2
We consider the most energetically favorable symmetry-allowed spin-singlet and spin-triplet superconducting pairing symmetries in twisted bilayer graphene at the magic angle, whose…
Bands renormalization and superconductivity in the strongly correlated Hubbard model using composite operators method
L. Haurie, M. Grandadam, E. Pangburn +3
We use the composite operator method (COM) to analyze the strongly correlated repulsive Hubbard model, investigating the effect of nearest-neighbor hoppings up to fourth order on a…
Incoherent transport in a model for the strange metal phase: Memory-matrix formalism
Emile Pangburn, Anurag Banerjee, Hermann Freire +1
We revisit a phenomenological model of fermions coupled to fluctuating bosons that emerges from finite-momentum particle-particle pairs for describing the strange metal phase in th…
Superconductivity in monolayer and few-layer graphene: III Impurity-induced subgap states and quasi-particle interference patterns
Emile Pangburn, Louis Haurie, Adeline Crépieux +5
We consider the most energetically favorable symmetry-allowed spin-singlet and spin-triplet superconducting pairing symmetries in monolayer and few-layer graphene, and for each cal…
Superconductivity in monolayer and few-layer graphene: I. Review of possible pairing symmetries and basic electronic properties
Emile Pangburn, Louis Haurie, Adeline Crépieux +4
We review all symmetry-allowed spin-singlet and spin-triplet superconducting (SC) order parameters in graphene (-wave, -wave, -wave, and -wave) generated by generic ons…
Superconductivity in monolayer and few-layer graphene: II. Topological edge states and Chern numbers
Adeline Crépieux, Emile Pangburn, Louis Haurie +5
We study the emergence of electronic edge states in superconducting (SC) monolayer, bilayer, and trilayer graphene for both spin-singlet and spin-triplet SC order parameters. We fo…