Quantum spin liquids may be considered'quantum disordered'ground states of spin systems,
in which zero-point fluctuations are so strong that they prevent conventional magnetic long …

To use quantum systems for technological applications one first needs to preserve their
coherence for macroscopic time scales, even at finite temperature. Quantum error correction …

A topological phase can undergo a phase transition driven by anyon condensation. A
potential obstruction to such a mechanism could arise if there exists a symmetry between …

Topological phases are unique states of matter that incorporate long-range quantum
entanglement and host exotic excitations with fractional quantum statistics. Here we report a …

The question whether Anderson insulators can persist to finite-strength interactions—a
scenario dubbed many-body localization—has recently received a great deal of interest. The …

A universal quantum simulator is a controlled quantum device that reproduces the dynamics
of any other many-particle quantum system with short-range interactions. This dynamics can …

Gauge fields coupled to dynamical matter are ubiquitous in many disciplines of physics,
ranging from particle to condensed matter physics, but their implementation in large-scale …

The enormous experimental progress in atomic, molecular, and optical (AMO) physics
during the last decades allows us nowadays to isolate single, a few or even many-body …

Motivated by the recent experimental observation of a Mott insulating state for the layered
iridate Na 2 IrO 3, we discuss possible ordering states of the effective iridium moments in the …

We study an effective Hamiltonian generating time evolution of states on intermediate time
scales in the strong-coupling limit of the spin-1/2 XXZ model. To leading order, it describes …