3 papers
cond-mat.mes-hall2020
Semiconductor-Bloch Formalism: Derivation and Application to High-Harmonic Generation from Dirac Fermions
Jan Wilhelm, Patrick Grössing, Adrian Seith +5
We rederive the semiconductor Bloch equations emphasizing the close link to the Berry connection. Our rigorous derivation reveals the existence of two further contributions to the…
cond-mat.dis-nn2019
Collective modes at a disordered quantum phase transition
Martin Puschmann, Jack Crewse, Jose A. Hoyos +1
We study the collective excitations, i.e., the Goldstone (phase) mode and the Higgs (amplitude) mode, near the superfluid--Mott glass quantum phase transition in a two-dimensional…
cond-mat.quant-gas2018
Quantum critical behavior of a three-dimensional superfluid-Mott glass transition
Jack Crewse, Cameron Lerch, Thomas Vojta
The superfluid to insulator quantum phase transition of a three-dimensional particle-hole symmetric system of disordered bosons is studied. To this end, a site-diluted quantum roto…