31 citations · 127 across the 11 of their papers we have counts for
11 papers
Simple invariants for band topology
Adam Yanis Chaou, Adolfo G. Grushin, Peru d'Ornellas
Despite the exhaustive understanding gathered around non-interacting topological states of matter, there is no single method capable of systematically delivering simple, numericall…
Leveraging structural disorder to enhance topological phases
Laura Gomez Paz, Peru d'Ornellas, Adolfo G Grushin
On-site disorder can be leveraged to induce a transition from a trivial to a topological insulator. However it is unclear if structural disorder in the absence of on-site disorder…
Topologically Protected Surface Altermagnetism on Antiferromagnets
Valentin Leeb, Peru d'Ornellas, Fernando de Juan +1
Altermagnetism (AM) and its associated spin-transport phenomena are typically linked to spin-split electronic band structures in bulk materials. However, the crystal surface has a…
Fractonic Fractional Quantum Hall Effect
Justin Schirmann, Peru d'Ornellas, Charles Stahl +1
In non-interacting systems, disorder can drive a trivial phase into a topological one. However little is known how to construct a fractional quantum Hall ground-state, a paradigmat…
Altermagnetism Without Crystal Symmetry
Peru d'Ornellas, Valentin Leeb, Adolfo G. Grushin +1
Altermagnetism is a collinear magnetic order in which opposite spin species are exchanged under a real-space rotation. Hence, the search for physical realizations has focussed on c…
Kitaev-Heisenberg model on the star lattice: From chiral Majorana fermions to chiral triplons
Peru d'Ornellas, Johannes Knolle
The interplay of frustrated interactions and lattice geometry can lead to a variety of exotic quantum phases. Here we unearth a particularly rich phase diagram of the Kitaev-Heisen…
An Exact Chiral Amorphous Spin Liquid
Gino Cassella, Peru D'Ornellas, Thomas Hodson +2
Topological insulator phases of non-interacting particles have been generalized from periodic crystals to amorphous lattices, which raises the question whether topologically ordere…
Quantised Bulk Conductivity as a Local Chern Marker
Peru d'Ornellas, Ryan Barnett, Derek K. K. Lee
A central property of Chern insulators is the robustness of the topological phase and edge states to impurities in the system. Despite this, Chern number cannot be straightforwardl…
Temporal mode transformations by sequential time and frequency phase modulation for applications in quantum information science
James Ashby, Valerian Thiel, Markus Allgaier +3
Controlling the temporal mode shape of quantum light pulses has wide ranging application to quantum information science and technology. Techniques have been developed to control th…
Forces Between Kinks in Theory
Peru d'Ornellas
We investigate the dynamics of the kinks that emerge in a one-dimensional scalar field theory with an octic potential containing a quartic minimum and two quadratic minima. We show…
Single-photon characterization by two-photon spectral interferometry
Valérian Thiel, Alex O. C. Davis, Ke Sun +3
Single-photon sources are a fundamental resource in quantum optics. The indistinguishability and purity of photons emitted from different sources are crucial (necessary, essential)…