201 citations · 1.5k across the 32 of their papers we have counts for
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Signatures of correlated magnetic phases in the local two-particle density matrix
Sebastian Huber, Fabian Grusdt, Matthias Punk
Experiments with quantum gas microscopes have started to explore the antiferromagnetic phase of the two-dimensional Fermi-Hubbard model and effects of doping with holes away from h…
Mobile impurity near the superfluid-Mott insulator quantum critical point in two dimensions
Matthias Punk, Subir Sachdev
We consider bosonic atoms in an optical lattice at integer filling, tuned to the superfluid-Mott insulator critical point, and coupled to a single, mobile impurity atom of a differ…
Dislocation-mediated melting of one-dimensional Rydberg crystals
Eran Sela, Matthias Punk, Markus Garst
We consider cold Rydberg atoms in a one-dimensional optical lattice in the Mott regime with a single atom per site at zero temperature. An external laser drive with Rabi frequency…
Quantum quenches in the anisotropic spin-1/2 Heisenberg chain: different approaches to many-body dynamics far from equilibrium
Peter Barmettler, Matthias Punk, Vladimir Gritsev +2
Recent experimental achievements in controlling ultracold gases in optical lattices open a new perspective on quantum many-body physics. In these experimental setups it is possible…
Polaron to molecule transition in a strongly imbalanced Fermi gas
M. Punk, P. T. Dumitrescu, W. Zwerger
A single down spin Fermion with an attractive, zero range interaction with a Fermi sea of up-spin Fermions forms a polaronic quasiparticle. The associated quasiparticle weight vani…