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Adiabatic preparation of a number-conserving atomic Majorana phase
Benjamin Michen, Tim Pokart, Jan Carl Budich
We construct a protocol to adiabatically prepare the ground state of a widely discussed number-conserving model Hamiltonian for ultracold atoms in optical lattices that supports Ma…
Exceptional Luttinger Liquids from sublattice dependent interaction
J. Schwardt, B. Michen, C. Lehmann +1
We demonstrate how Exceptional Points (EPs) naturally occur in the Luttinger Liquid (LL) theory describing the low-energy excitations of a microscopic lattice model with sublattice…
Nodal Spectral Functions Stabilized by Non-Hermitian Topology of Quasiparticles
Carl Lehmann, Tommaso Micallo, Jan Carl Budich
In quantum materials, basic observables such as spectral functions and susceptibilities are determined by Green's functions and their complex quasiparticle spectrum rather than by…
Dissipative frequency converter: from Lindblad dynamics to non-Hermitian topology
Florian Koch, Jan Carl Budich
A topological frequency converter represents a dynamical counterpart of the integer quantum Hall effect, where a two-level system enacts a quantized time-averaged power transfer be…