11 citations · 31 across the 7 of their papers we have counts for
7 papers
Hole and spin dynamics in an anti-ferromagnet close to half filling
Magnus Callsen, Jens H. Nyhegn, Kristian Knakkergaard Nielsen +1
The interplay between charge and spin dynamics is at the heart of strongly correlated materials. Inspired by recent quantum simulation experiments, we develop a conserving diagramm…
Exciton interacting with the phonons of an electronic Wigner crystal
Jens Havgaard Nyhegn, Esben Rohan Christensen, Georg M. Bruun
With the advent of atomically thin and tunable van der Waals materials, a two-dimensional electronic Wigner crystal has recently been observed. The smoking gun signal was the appea…
Spin-charge bound states and emerging fermions in a quantum spin liquid
Jens H. Nyhegn, Kristian Knakkergaard Nielsen, Leon Balents +1
The complex interplay between charge and spin dynamics lies at the heart of strongly correlated quantum materials, and it is a fundamental topic in basic research with far reaching…
Probing a quantum spin liquid with equilibrium and nonequilibrium hole dynamics
J. H. Nyhegn, K. Knakkergaard Nielsen, G. M. Bruun
The properties and experimental identification of quantum spin liquids (QSLs) remain an important topic with many fundamental questions. Here, we explore the dynamics of a single c…
Wave function and spatial structure of polarons in an antiferromagnetic bilayer
Jens H. Nyhegn, Georg M. Bruun, Kristian K. Nielsen
Adding a dopant to an antiferromagnetic spin background disturbs the magnetic order and leads to the formation of a quasiparticle coined the magnetic polaron, which plays a central…
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…
lattice gauge theory in a ladder geometry
Jens Nyhegn, Chia-Min Chung, Michele Burrello
Under the perspective of realizing analog quantum simulations of lattice gauge theories, ladder geometries offer an intriguing playground, relevant for ultracold atom experiments.…