marcus cramer, theoretical physicist

working on quantum many-body systems from a quantum information perspective. more on the mathematically rigorous side but always with a large range of experimental platforms and applications in mind.

research interests

in and out of equilibrium: thermalization after quantum quenches and equivalence of ensembles exact relaxation in a class of nonequilibrium quantum lattice systems thermalization under randomized local hamiltonians equivalence of statistical mechanical ensembles for non-critical quantum systems characterization and verification of large-scale many-body quantum devices: scalable quantum state tomography and quantification of entanglement spatial entanglement of bosons in optical lattices measuring entanglement in condensed matter systems efficient quantum state tomography focus on quantum tomography ultracold atoms in optical lattices: superfluid-mott transition and adiabatic cooling/heating interaction-dependent temperature effects in bose-fermi mixtures in optical lattices inhomogeneous atomic bose-fermi mixtures in cubic lattices entanglement scaling in critical and non-critical systems area laws for the entanglement entropy -- a review entanglement area law from specific heat capacity