78 citations · 581 across the 16 of their papers we have counts for
17 papers
Stability of the Weyl-semimetal phase on the pyrochlore lattice
Christoph Berke, Paolo Michetti, Carsten Timm
Motivated by the proposal of a Weyl-semimetal phase in pyrochlore iridates, we consider a Hubbard-type model on the pyrochlore lattice. To shed light on the question as to why such…
Electron-hole pairing of Fermi-arc surface states in a Weyl-semimetal bilayer
Paolo Michetti, Carsten Timm
The topological nature of Weyl semimetals (WSMs) is corroborated by the presence of chiral surface states, which connect the projections of the bulk Weyl points by Fermi arcs (FAs)…
Screening properties and plasmons of Hg(Cd)Te quantum wells
Stefan Juergens, Paolo Michetti, Björn Trauzettel
Under certain conditions, Hg(Cd)Te quantum wells (QWs) are known to realize a time-reversal symmetric, two-dimensional topological insulator phase. Its low-energy excitations are w…
Time Reversal Symmetric Topological Exciton Condensate in Bilayer HgTe Quantum Wells
Jan Carl Budich, Björn Trauzettel, Paolo Michetti
We investigate a bilayer system of critical HgTe quantum wells each featuring a spin-degenerate pair of massless Dirac fermions. In the presence of an electrostatic inter-layer Cou…
Plasmons due to the interplay of Dirac and Schrödinger fermions
Stefan Juergens, Paolo Michetti, Björn Trauzettel
We study the interplay between Dirac and Schrödinger fermions in the polarization properties of a two-dimensional electron gas (2DEG). Specifically, we analyze the low-energy secto…
Microscopic Theory of Polariton Lasing via Vibronically Assisted Scattering
Leonardo Mazza, Stéphane Kéna-Cohen, Paolo Michetti +1
Polariton lasing has recently been observed in strongly coupled crystalline anthracene microcavities. A simple model is developed describing the onset of the non-linear threshold b…