Far-from-equilibrium field theory of many-body quantum spin systems: Prethermalization and relaxation of spin spiral states in three dimensions

M Babadi, E Demler, M Knap - Physical Review X, 2015 - APS
We study theoretically the far-from-equilibrium relaxation dynamics of spin spiral states in
the three-dimensional isotropic Heisenberg model. The investigated problem serves as an …

Nonthermal melting of Néel order in the Hubbard model

K Balzer, FA Wolf, IP McCulloch, P Werner, M Eckstein - Physical Review X, 2015 - APS
We study the unitary time evolution of antiferromagnetic order in the Hubbard model after a
quench starting from the perfect Néel state. In this setup, which is well suited for experiments …

Atomtronics with a spin: Statistics of spin transport and nonequilibrium orthogonality catastrophe in cold quantum gases

JS You, R Schmidt, DA Ivanov, M Knap, E Demler - Physical Review B, 2019 - APS
We propose to investigate the full counting statistics of nonequilibrium spin transport with an
ultracold atomic quantum gas. The setup makes use of the spin control available in atomic …