415 citations · 938 across the 26 of their papers we have counts for
26 papers
Hawking Radiation in non-Hermitian Microscopic Analogues
Diego F. Munoz-Arboleda, Cristiane Morais Smith, Marcus Stålhammar
Non-Hermitian systems have recently emerged as a convenient platform to realize black-hole physics. Here, we propose a microscopic open quantum system, namely a fermionic tight-bin…
Multifractal Properties of Tribonacci Chains
Julius Krebbekx, Anouar Moustaj, Karma Dajani +1
We introduce two 1D tight-binding models based on the Tribonacci substitution, the hopping and on-site Tribonacci chains, which generalize the Fibonacci chain. For both hopping and…
The fractional Landau-Lifshitz-Gilbert equation
Robin C. Verstraten, Tim Ludwig, Rembert A. Duine +1
The dynamics of a magnetic moment or spin are of high interest to applications in technology. Dissipation in these systems is therefore of importance for improvement of efficiency…
Robustness of chiral edge modes in fractal-like-lattices below two dimensions: A case study
Sonja Fischer, Michal van Hooft, Twan van der Meijden +3
One of the most prominent characteristics of two-dimensional Quantum Hall systems are chiral edge modes. Their existence is a consequence of the bulk-boundary correspondence and th…
Effects of Disorder in the Fibonacci Quasicrystal
Anouar Moustaj, Sander Kempkes, Cristiane Morais Smith
We study the properties of the one-dimensional Fibonacci chain, subjected to the placement of on-site impurities. The resulting disruption of quasiperiodicity can be classified in…
Time Glass: A Fractional Calculus Approach
Robin C. Verstraten, Rodrigo F. Ozela, Cristiane Morais Smith
Out of equilibrium states in glasses and crystals have been a major topic of research in condensed-matter physics for many years, and the idea of time crystals has triggered a flur…
p Orbital flat band and Dirac cone in the electronic honeycomb lattice
Thomas S. Gardenier, Jette J. van den Broeke, Jesper R. Moes +5
Theory anticipates that the in-plane px, py orbitals in a honeycomb lattice lead to new and potentially useful quantum electronic phases. So far, p orbital bands were only realized…
Flat band superconductivity in the square-octagon lattice
Lizardo H. C. M. Nunes, Cristiane Morais Smith
The discovery of superconductivity in twisted bilayer graphene has triggered a resurgence of interest in flat-band superconductivity. Here, we investigate the square-octagon lattic…
Internal Geometric Friction in a Kitaev Chain Heat Engine
Elif Yunt, Mojde Fadaie, Özgür E. Müstecaplıoğlu +1
We investigate a heat engine with a finite-length Kitaev chain in an ideal Otto cycle. It is found that the critical point of the topological phase transition coincides with the ma…
Quantizing Lévy flights
Ruward A. Mulder, Mônica. A. Caracanhas, Cristiane Morais Smith
The Caldeira-Leggett model of quantum Brownian motion is generalized using a generic velocity-dependent coupling. That leads to the description of a set of models able to capture M…
Median-point approximation and its application for the study of fermionic systems
Dmytro Makogon, Cristiane Morais Smith
We consider a system of fermions with local interactions on a lattice (Hubbard model) and apply a novel extension of the Laplace's method (saddle-point approximation) for evaluatin…
The existence of robust edge currents in Sierpinsky Fractals
Mikael Fremling, Michal van Hooft, Cristiane Morais Smith +1
We investigate the Hall conductivity in a Sierpinski carpet, a fractal of Hausdorff dimension , subject to a perpendicular magnetic field. We compu…
Resonances in a periodically driven bosonic system
Anton Quelle, Cristiane Morais Smith
Periodically driven systems are a common topic in modern physics. In optical lattices specifically, driving is at the origin of many interesting phenomena. However, energy is not c…
Chern-Simons theory and atypical Hall conductivity in the Varma phase
N. Menezes, C. Morais Smith, Giandomenico Palumbo
In this letter, we analyze the topological response of a fermionic model defined on the Lieb lattice in presence of an electromagnetic field. The tight-binding model is built in te…
Celebrating Haldane's `Luttinger liquid theory'
Jean-Sébastien Caux, Cristiane Morais Smith
This short piece celebrates Haldane's seminal J. Phys. C 14, 2585 (1981) paper laying the foundations of the modern theory of Luttinger liquids in one-dimensional systems.
Experimental realization and characterization of an electronic Lieb lattice
Marlou R. Slot, Thomas S. Gardenier, Peter H. Jacobse +6
Geometry, whether on the atomic or nanoscale, is a key factor for the electronic band structure of materials. Some specific geometries give rise to novel and potentially useful ele…
Universalities of thermodynamic signatures in topological phases
S. N. Kempkes, A. Quelle, C. Morais Smith
Topological insulators (superconductors) are materials that host symmetry-protected metallic edge states in an insulating (superconducting) bulk. Although they are well understood,…
Topological origin of edge states in two-dimensional inversion-symmetric insulators and semimetals
Guido van Miert, Carmine Ortix, Cristiane Morais Smith
Symmetries play an essential role in identifying and characterizing topological states of matter. Here, we classify topologically two-dimensional (2D) insulators and semimetals wit…
The influence of a weak magnetic field in the Renormalization-Group functions of (2+1)-dimensional Dirac systems
N. Menezes, Van Sergio Alves, C. Morais Smith
The experimental observation of the renormalization of the Fermi velocity as a function of doping has been a landmark for confirming the importance of electronic interactio…
Quantum Brownian motion in a Landau level
Emilio Cobanera, Peter Kristel, Cristiane Morais Smith
Motivated by questions about the open-system dynamics of topological quantum matter, we investigated the quantum Brownian motion of an electron in a homogeneous magnetic field. Whe…
Kekule versus hidden superconducting order in graphene-like systems: Competition and coexistence
Flore K. Kunst, Christophe Delerue, Cristiane Morais Smith +1
We theoretically study the competition between two possible exotic superconducting orders that may occur in graphene-like systems, assuming dominant nearest-neighbor attraction: th…
Bandwidth-resonant Floquet states in honeycomb optical lattices
Anton Quelle, Mark Goerbig, Cristiane Morais Smith
We investigate, within Floquet theory, topological phases in the out-of-equilibrium system that consists of fermions in a circularly shaken honeycomb optical lattice. We concentrat…
Tight-binding theory of spin-orbit coupling in graphynes
Guido van Miert, Vladimir Juricic, Cristiane Morais Smith
We investigate the effects of Rashba and intrinsic spin-orbit couplings in graphynes. First, we develop a general method to address spin-orbit couplings within the tight-binding th…
Dynamical competition between Quantum Hall and Quantum Spin Hall effects
Anton Quelle, Cristiane Morais Smith
In this paper we investigate the occurrence of quantum phase transitions in topological systems out of equi- librium. More specifically, we consider graphene with a sizable spin-or…