7 citations · 10 across the 3 of their papers we have counts for
3 papers
cond-mat.quant-gas2023★ 3 cited
Quantum beat spectroscopy of repulsive Bose polarons
A. M. Morgen, S. S. Balling, K. Knakkergaard Nielsen +3
The physics of impurities in a bosonic quantum environment is a paradigmatic and challenging many-body problem that remains to be understood in its full complexity. Here, this prob…
cond-mat.str-el2022★ 7 cited
Equilibrium and non-equilibrium dynamics of a hole in a bilayer antiferromagnet
Jens H. Nyhegn, Kristian K. Nielsen, Georg M. Bruun
The dynamics of charge carriers in lattices of quantum spins is a long standing and fundamental problem. Recently, a new generation of quantum simulation experiments based on atoms…
cond-mat.str-el2022
Exact nonequilibrium hole dynamics, magnetic polarons and string excitations in antiferromagnetic Bethe lattices
K. Knakkergaard Nielsen
We investigate a rare instance of an exactly solvable nonequilibrium many-body problem. In particular, we derive an exact solution for the nonequilibrium dynamics of an initially l…