Publications (13)
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…
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…
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…
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…