31 citations · 62 across the 12 of their papers we have counts for
12 papers
Temporal Localisation of Waves from Imaginary Line-Gap Topology
Carlos Camacho, Tom Sheppard, Joshua Feis +4
For non-Hermitian Hamiltonians, gain, loss, and non-reciprocity produce complex eigenvalues which, in turn, facilitate different kinds of topological phases. One example is the ima…
Composite Quantum Geometry and Semiclassical Dynamics
Henry Davenport, Yoonseok Hwang, Johannes Knolle +1
We derive semiclassical equations of motion for general composite bound states in insulators and semiconductors, covering excitations such as excitons and trions. For neutral compo…
Stable Wave-Function Zeros Indicate Exciton Topology
Yoonseok Hwang, Henry Davenport, Frank Schindler
Excitons are bound states of electrons and holes whose band topology arises from an interplay between the topology of the underlying electronic bands and the structure of the elect…
Topological Dislocation Response in Elementary Semiconductors
Yuteng Zhou, Alexandre Chaduteau, Frank Schindler
We study elementary semiconductors and insulators that are symmetric under spatial inversion: silicon, diamond, germanium, and black phosphorene. These materials are ideal candidat…
A pedestrian's guide to the topological phases of free fermions
Frank Schindler
These lecture notes explain the classification of some simple fermionic topological phases of matter in a pedestrian manner, with an aim to be maximally pedagogical = doing things…
Topological Localisation in Time from PT Symmetry
Tom Sheppard, C. B. B. Camacho, Sebastian Weidemann +4
Time has entered the domain of topological phases in the field of non-Hermitian physics. Previous studies have relied on periodic modulation in time to make an intuitive connection…
Stable Real-Space Invariants and Topology Beyond Symmetry Indicators
Yoonseok Hwang, Vaibhav Gupta, Frank Schindler +4
We introduce stable real-space invariants (SRSIs), topological invariants defined from adiabatic deformations between Wannier states, generalizing previously discovered local and c…
Microscopic theory of Chern polarization via crystalline defect charge
Thivan M. Gunawardana, Frank Schindler, Ari M. Turner +1
The modern theory of polarization does not apply in its original form to systems with non-trivial band topology. Chern insulators are one such example. Defining polarization for th…
Materials for Quantum Technologies: a Roadmap for Spin and Topology
N. Banerjee, C. Bell, C. Ciccarelli +22
In this Perspective article, we explore some of the promising spin and topology material platforms (e.g. spins in semi- and superconductors, skyrmionic, topological and 2D material…
Engineering Miniband Topology via Band-Folding in Moiré Superlattice Materials
Kaijie Yang, Yunzhe Liu, Frank Schindler +1
The emergence of topologically non-trivial flat bands in moiré materials provides an opportunity to explore the interplay between topological physics and correlation effects, leadi…
Discovery of a hybrid topological quantum state in an elemental solid
Md Shafayat Hossain, Frank Schindler, Rajibul Islam +17
Topology and interactions are foundational concepts in the modern understanding of quantum matter. Their nexus yields three significant research directions: competition between dis…
-Nontrivial Moiré Minibands and Interaction-Driven Quantum Anomalous Hall Insulators in Topological Insulator Based Moiré Heterostructures
Kaijie Yang, Zian Xu, Yanjie Feng +6
We studied electronic band structure and topological property of a topological insulator thin film under a moiré superlattice potential to search for two-dimensional (2D) $\mathbb…