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Zero Mode Operators and Charge-Conjugation Defects in Non-Abelian Fractional Quantum Hall-Superconductor Heterostructures
Junyi Cao, Eduardo Fradkin
We study zero modes bound to charge-conjugation defects in fractional quantum Hall-superconductor (FQH-SC) heterostructures built from Abelian and non-Abelian FQH states. Although…
Chern insulator boundary criticality
Benjamin Moy, Eduardo Fradkin
We investigate signatures of chirality at Chern insulator transitions in the presence of a boundary. The transition between a trivial insulator and a Chern insulator with Chern num…
Interferometric Signatures of Zero Modes in Fractional Quantum Hall-Superconductor Heterostructures
Junyi Cao, Ramanjit Sohal, Angela Kou +1
Fractional quantum Hall-superconductor (FQH-SC) heterostructures are predicted to host defect-bound parafermion zero modes (PZMs). We propose two related configurations to probe th…
Signatures of Parafermion Zero Modes in Fractional Quantum Hall-Superconductor Heterostructures
Junyi Cao, Angela Kou, Eduardo Fradkin
Parafermion zero modes can arise in hybrid structures composed of fractional quantum Hall edges proximitized with an s-wave superconductor. Here we consider parafermion and…
Atomic-Scale Visualization of a Cascade of Magnetic Orders in the Layered Antiferromagnet
Arjun Raghavan, Marisa Romanelli, Julian May-Mann +8
is a layered antiferromagnet which has attracted attention due to its exceptionally high mobility, distinctive unidirectional incommensurate charge density wave (CDW), s…
Theory of oblique topological insulators
Benjamin Moy, Hart Goldman, Ramanjit Sohal +1
A long-standing problem in the study of topological phases of matter has been to understand the types of fractional topological insulator (FTI) phases possible in 3+1 dimensions. U…