66 citations · 500 across the 14 of their papers we have counts for
14 papers
Non-equilibrium dynamics of a system with Quantum Frustration
Heiner Kohler, Andreas Hackl, Stefan Kehrein
Using flow equations, equilibrium and non-equilibrium dynamics of a two-level system are investigated, which couples via non-commuting components to two independent oscillator bath…
Thermodynamic signatures of a fractionalized Fermi liquid
Andreas Hackl, Ronny Thomale
Several heavy-fermion metals display a quantum phase transition from an antiferromagnetic metal to a heavy Fermi liquid. In some materials, however, recent experiments seem to find…
Zeeman-driven Lifshitz transition: A scenario for the Fermi-surface reconstruction in YbRh2Si2
Andreas Hackl, Matthias Vojta
The heavy-fermion metal YbRh2Si2 displays a field-driven quantum phase transition where signatures of a Fermi-surface reconstruction have been identified, often interpreted as brea…
Stripe order and quasiparticle Nernst effect in cuprate superconductors
Andreas Hackl, Matthias Vojta
After a brief review of current ideas on stripe order in cuprate high-temperature superconductors, we discuss the quasiparticle Nernst effect in the cuprates, with focus on its evo…
New theoretical approaches for correlated systems in nonequilibrium
M. Eckstein, A. Hackl, S. Kehrein +4
We review recent developments in the theory of interacting quantum many-particle systems that are not in equilibrium. We focus mainly on the nonequilibrium generalizations of the f…
Nernst effect anisotropy as a sensitive probe of Fermi surface distortions from electron-nematic order
Andreas Hackl, Matthias Vojta
We analyze the thermoelectric response in layered metals with spontaneously broken rotation symmetry. We identify the anisotropy of the quasiparticle Nernst signal as an extremely…