6 papers
Many-body quantum chaos in excitonic spectra from first principles
Daniel Hernangómez-Pérez, Rafael A. Molina
We demonstrate that realistic excitonic many-body Hamiltonians obtained from first-principles GW-Bethe-Salpeter equation calculations can exhibit quantum chaos governed by random-m…
Cubic edge dispersion in a semi-Dirac Chern insulator
Marta GarcÃa Olmos, David MartÃn Tejedor, Mario Amado +2
Topological edge states in Chern insulators are typically characterized by a linear dispersion relation inherited from the Dirac structure of the bulk Hamiltonian. Here we show tha…
Corner Majorana states in semi-Dirac materials
M. GarcÃa Olmos, Y. Baba, R. A. Molina +1
Proximity-induced superconductivity in low-dimensional systems offers a powerful pathway to engineer topological superconducting phases in, otherwise, non-superconducting systems.…
Tunable plasmon modes and topological transitions in single- and bilayer semi-Dirac materials
Debasmita Giri, John Schliemann, Rafael Molina +1
We investigate the plasmonic response of single- and bilayer semi-Dirac materials under the influence of a tunable parameter that governs topological transitions via Dirac con…
Spin-dependent transport through edge states in 2D semi-Dirac materials with Rashba spin-orbit coupling and band inversion
Marta GarcÃa-Olmos, Yuriko Baba, Alexander López +2
We investigate the bulk-boundary correspondence in two-dimensional type-I semi-Dirac materials with band inversion and Rashba spin-orbit coupling. Employing a dimensional reduction…
Monolayer transition metal dichalcogenides under finite-pulse polarized radiation
Alejandro S. Gómez, Yuriko Baba, Francisco DomÃnguez-Adame +1
Recent advances in time-resolved angle-resolved photoemission spectroscopy have enabled access to ultrafast electron states and their spin dynamics in solids. Atomically thin trans…