188 citations · 398 across the 12 of their papers we have counts for
12 papers
Chiral-helical junctions in screened graphene
Bilal Kousar, Selma Franca, David Perconte +14
Reproducibility and quantization in quantum spin Hall platforms is a persisting challenge, limiting their use in hybrid realizations of topological superconductivity. We report rob…
Two-point spectroscopy of Fibonacci topoelectrical circuits
Selma Franca, Torsten Seidemann, Fabian Hassler +2
Topoelectrical circuits are meta-material realizations of topological features of condensed matter systems. In this work, we discuss experimental methods that allow a fast and stra…
Physical properties of an Aperiodic monotile: Graphene-like features, chirality and zero-modes
Justin Schirmann, Selma Franca, Felix Flicker +1
The discovery of the Hat, an aperiodic monotile, has revealed novel mathematical aspects of aperiodic tilings. However, the physics of particles propagating in such a setting remai…
Topological diffusive metal in amorphous transition metal monosilicides
Selma Franca, Adolfo G. Grushin
In chiral crystals crystalline symmetries can protect multifold fermions, pseudo-relativistic masless quasiparticles that have no high-energy counterparts. Their realization in tra…
Topological zero-modes of the spectral localizer of trivial metals
Selma Franca, Adolfo G. Grushin
Topological insulators are described by topological invariants that can be computed by integrals over momentum space, but also as traces over local, real-space topological markers.…
Non-Hermitian physics without gain or loss: the skin effect of reflected waves
S. Franca, V. Könye, F. Hassler +2
Physically, one tends to think of non-Hermitian systems in terms of gain and loss: the decay or amplification of a mode is given by the imaginary part of its energy. Here, we intro…
Topological reflection matrix
Selma Franca, Fabian Hassler, Ion Cosma Fulga
While periodically-driven phases offer a unique insight into non-equilibrium topology that is richer than its static counterpart, their experimental realization is often hindered b…
Network model for higher-order topological phases
Hui Liu, Selma Franca, Ali G. Moghaddam +2
We introduce a two-dimensional network model that realizes a higher-order topological phase (HOTP). We find that in the HOTP the bulk and boundaries of the system are gapped, and a…
Simulating Floquet topological phases in static systems
Selma Franca, Fabian Hassler, Ion Cosma Fulga
We show that scattering from the boundary of static, higher-order topological insulators (HOTIs) can be used to simulate the behavior of (time-periodic) Floquet topological insulat…
Phase tunable second-order topological superconductor
S. Franca, D. V. Efremov, I. C. Fulga
Two-dimensional second-order topological superconductors (SOTSCs) have gapped bulk and edge states, with zero-energy Majorana bound states localized at corners. Motivated by recent…
Majorana fermions in finite-size strips in the presence of orbital effects: what is the Majorana polarization telling us?
Selma Franca, Vardan Kaladzhyan, Cristina Bena
We study numerically the formation of Majorana bound states in a finite-size quasi-one-dimensional square-lattice strip with Rashba spin-orbit coupling, in the presence of a proxim…
An anomalous higher-order topological insulator
S. Franca, J. van den Brink, I. C. Fulga
Topological multipole insulators are a class of higher order topological insulators (HOTI) in which robust fractional corner charges appear due to a quantized electric multipole mo…