C
Carmine Ortix
Researcher at University of Salerno
Publications - 109
Citations - 2429
Carmine Ortix is an academic researcher from University of Salerno. The author has contributed to research in topics: Topological insulator & Magnetic field. The author has an hindex of 26, co-authored 99 publications receiving 1926 citations. Previous affiliations of Carmine Ortix include Leiden University & Leibniz Association.
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Higher-order topological insulators protected by inversion and rotoinversion symmetries
TL;DR: In this article, the bulk topological invariant for chiral higher-order topological insulators is defined in terms of symmetric hybrid Wannier functions of the filled bands, and can be readily calculated from the knowledge of the crystalline symmetry labels of the bulk band structure.
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Universal recovery of the energy-level degeneracy of bright excitons in InGaAs quantum dots without a structure symmetry.
Rinaldo Trotta,Eugenio Zallo,Carmine Ortix,Paola Atkinson,J. D. Plumhof,J.E. van den Brink,Armando Rastelli,Oliver G. Schmidt +7 more
TL;DR: It is demonstrated experimentally and theoretically that it is always possible to restore the excitonic degeneracy by the simultaneous application of large strain and electric fields, and highlights the potential of combining complementary external fields to create artificial atoms meeting the stringent requirements posed by scalable semiconductor-based quantum technology.
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Stacked topological insulator built from bismuth-based graphene sheet analogues
Bertold Rasche,Anna Isaeva,Michael Ruck,Sergey Borisenko,V. B. Zabolotnyy,Bernd Büchner,Klaus Koepernik,Carmine Ortix,Manuel Richter,Jeroen van den Brink +9 more
TL;DR: In this article, the authors synthesize the first bulk material belonging to an entirely different, weak, topological class, built from stacks of two-dimensional topological insulators: Bi14Rh3I9.
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Energy-tunable sources of entangled photons: a viable concept for solid-state-based quantum relays.
TL;DR: Theoretical models based on k·p theory in combination with finite-element calculations show that the energy of the polarization-entangled photons emitted by QDs can be tuned in a range larger than 100 meV without affecting the degree of entanglement of the quantum source.
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Graphene on incommensurate substrates: trigonal warping and emerging Dirac cone replicas with halved group velocity
TL;DR: In this paper, it was shown that the small lattice incommensurability prevents the opening of this gap and rather leads to a renormalized Dirac dispersion with a trigonal warping, which breaks the effective time-reversal symmetry in a single valley.