Eugene Demler

TL;DR: It is shown that the physics of the orthogonality catastrophe is experimentally observable up to temperatures and it is proved that within the considered model the fastest rate of long-time decoherence is given by the Toeplitz determinants.

TL;DR: Gong et al. as discussed by the authors investigated whether such a Dicke time crystal (TC) is stable to perturbations that explicitly break the mean-field solvability of the conventional DICke model, and they considered the addition of short-range interactions between the atoms which breaks the collective coupling and leads to complex many-body dynamics.

TL;DR: This work uses the bosonization approach to investigate quantum phases of boson-fermion mixtures (BFM) of atoms confined to one dimension by an anisotropic optical lattice and obtains the rich phase diagram of a BFM with two species of fermions.

TL;DR: A physical system that naturally admits two-dimensional topological nearly flat bands and exact diagonalization of the full interacting Hamiltonian at half-filling reveals the existence of superfluid, crystalline, and supersolid phases.

TL;DR: This demonstration of Nagaoka ferromagnetism highlights that quantum simulators can be used to study physical phenomena that have not yet been observed in any experimental system and constitutes an important step towards large-scale quantum dot simulators of correlated electron systems.