APS has appointed Dr. Jan Michael Rost, Director at the Max Planck Institute for the Physics of Complex Systems in Dresden, Germany, as the Lead Editor of Physical Review A (PRA). He takes over this role from Dr. Gordon Drake, who has served as PRA’s Lead Editor since February 2006. Dr. Rost formerly served as an Editorial Board member for PRA from January 2004 to December 2006 and begins his new role January 1, 2019.

The time evolution of a weakly interacting uniform atomic Bose gas with a time-dependent nonlinear coupling constant is investigated with a Bogoliubov treatment. The evolution of Bogoliubov modes in different momentum regimes, the existence of exact solutions, and the coherence property of the system in one spatial dimension are discussed.

A one-dimensional Bose-Hubbard model for zero and finite temperatures is simulated with tensor network methods. The effects of finite temperature on the properties of the insulating and superfluid phase, and the dynamics of the system triggered by a linear quench in the particle hopping parameter, are both explored.

Non-Markovian dynamics is simulated in an optical platform, allowing the identification and control of the flow of information. The study is relevant for controlling real quantum systems, which are unavoidably coupled to their environment.

Halo ${}^{86}$Sr${}_2$ molecules are photoassociated in their ground electronic state. The large sensitivity of the molecular binding energy to the near-resonant light suggests the possibility of probing naturally occurring Efimov states by optical means.

A doubly-quantum-degenerate Bose-Bose mixture of ${}^{174}$Yb-${}^7$Li and a Fermi-Bose mixture of ${}^{173}$Yb-${}^7$Li are experimentally realized in mixed spatial dimensions. The formation and characterization of the Fermi-Bose mixture make a step towards a possible realization of a topological superfluid.

Energetic neutral atoms are detected following an interatomic Coulombic decay of loosely bound He clusters. The observation is explained by “frustrated Coulomb explosion” — a process mediated by electron migration during a Coulomb explosion of the ionized clusters.

The nuances between entangled resource states that can or cannot be prepared from the distribution of bipartite entanglement are analyzed. Concrete examples are given to prove that multipartite entanglement outperforms bipartite entanglement when limitations on the local system sizes exist.

Lead Editor, Gordon Drake, and Managing Editor, Thomas Pattard, discuss the evolution and history of Physical Review A.