Inherent symmetry of a quantum system may protect its otherwise fragile states. Leveraging
such protection requires testing its robustness against uncontrolled environmental …

The operator entanglement (OE) is a key quantifier of the complexity of a reduced density
matrix. In out-of-equilibrium situations, eg, after a quantum quench of a product state, it is …

We introduce an efficient method to simulate the dynamics of an interacting quantum
impurity coupled to noninteracting fermionic reservoirs. Viewing the impurity as an open …

Rényi entropies are conceptually valuable and experimentally relevant generalizations of
the celebrated von Neumann entanglement entropy. After a quantum quench in a clean …

We study the emergence over time of a universal, uniform distribution of quantum states
supported on a finite subsystem, induced by projectively measuring the rest of the system …

In this work, we present and analyze two tensor network-based influence functional
approaches for simulating the real-time dynamics of quantum impurity models such as the …

In the 0+ 1-dimensional imaginary-time path integral formulation of quantum impurity
problems, the retarded action encodes the hybridization of the impurity with the bath. In this …

We study the growth of entanglement between two adjacent regions in a tripartite, one-
dimensional many-body system after a quantum quench. Combining a replica trick with a …

Describing a quantum impurity coupled to one or more noninteracting fermionic reservoirs is
a paradigmatic problem in quantum many-body physics. While historically the focus has …

We study the out-of-equilibrium dynamics of the quantum cellular automaton Rule 54 using
a time-channel approach. We exhibit a family of (non-equilibrium) product states for which …