115 citations · 285 across the 11 of their papers we have counts for
12 papers
Topological heavy fermions in magnetic field
Keshav Singh, Aaron Chew, Jonah Herzog-Arbeitman +2
The recently introduced topological heavy fermion model (THFM) provides a means for interpreting the low-energy electronic degrees of freedom of the magic angle twisted bilayer gra…
Many-Body Superconductivity in Topological Flat Bands
Jonah Herzog-Arbeitman, Aaron Chew, Kukka-Emilia Huhtinen +2
In a flat band superconductor, bosonic excitations can disperse while unpaired electrons are immobile. To study this strongly interacting system, we construct a family of multi-ban…
Magnetic Bloch Theorem and Reentrant Flat Bands in Twisted Bilayer Graphene at Flux
Jonah Herzog-Arbeitman, Aaron Chew, B. Andrei Bernevig
Bloch's theorem is the centerpiece of topological band theory, which itself has defined an era of quantum materials research. However, Bloch's theorem is broken by a perpendicular…
Revisiting flat band superconductivity: dependence on minimal quantum metric and band touchings
Kukka-Emilia Huhtinen, Jonah Herzog-Arbeitman, Aaron Chew +2
A critical result in superconductivity is that flat bands, though dispersionless, can still host nonzero superfluid weight due to quantum geometry. We show that the derivation of t…
Reentrant Correlated Insulators in Twisted Bilayer Graphene at 25T ( Flux)
Jonah Herzog-Arbeitman, Aaron Chew, Dmitri K. Efetov +1
Twisted bilayer graphene (TBG) is remarkable for its topological flat bands, which drive strongly-interacting physics at integer fillings, and its simple theoretical description fa…
Observation of re-entrant correlated insulators and interaction driven Fermi surface reconstructions at one magnetic flux quantum per moiré unit cell in magic-angle twisted bilayer graphene
Ipsita Das, Cheng Shen, Alexandre Jaoui +8
The discovery of flat bands with non-trivial band topology in magic angle twisted bi-layer graphene (MATBG) has provided a unique platform to study strongly correlated phe-nomena i…
Higher-Order Topological Superconductivity in Twisted Bilayer Graphene
Aaron Chew, Yijie Wang, B. Andrei Bernevig +1
We show that introducing spin-singlet or spin-triplet superconductivity into twisted bilayer graphene induces higher-order topological superconductivity. -protected corner…
General Construction and Topological Classification of All Magnetic and Non-Magnetic Flat Bands
Dumitru Călugăru, Aaron Chew, Luis Elcoro +3
Exotic phases of matter emerge from the interplay between strong electron interactions and non-trivial topology. Owing to their lack of dispersion at the single-particle level, sys…
Survival of the fractional Josephson effect in time-reversal-invariant topological superconductors
Christina Knapp, Aaron Chew, Jason Alicea
Time-reversal-invariant topological superconductor (TRITOPS) wires host Majorana Kramers pairs that have been predicted to mediate a fractional Josephson effect with periodici…
Time-crystalline Topological Superconductors
Aaron Chew, David F. Mross, Jason Alicea
Time crystals form when arbitrary physical states of a periodically driven system spontaneously break discrete time-translation symmetry. We introduce one-dimensional time-crystall…
Fermionized parafermions and symmetry-enriched Majorana modes
Aaron Chew, David F. Mross, Jason Alicea
Parafermion zero modes are generalizations of Majorana modes that underlie comparatively rich non-Abelian-anyon properties. We introduce exact mappings that connect parafermion cha…
Approximating the Sachdev-Ye-Kitaev model with Majorana wires
Aaron Chew, Andrew Essin, Jason Alicea
The Sachdev-Ye-Kitaev (SYK) model describes a collection of randomly interacting Majorana fermions that exhibits profound connections to quantum chaos and black holes. We propose a…