This article summarizes some of the relevant features exhibited by binary mixtures of Bose–
Einstein condensates in the presence of coherent coupling at zero temperature. The …

We report on the experimental measurement of the dispersion relation of the density and
spin collective excitation modes in an elongated two-component superfluid of ultracold …

Ferromagnetism is an iconic example of a first-order phase transition taking place in
spatially extended systems and is characterized by hysteresis and the formation of domain …

The combination of different kinds of ultracold gases constitutes a novel powerful
experimental framework for the investigation of a variety of physical problems. We illustrate …

Close to the demixing transition, the degree of freedom associated with relative density
fluctuations of a two-component Bose-Einstein condensate is described by a nondissipative …

We report on the experimental characterization of a spatially extended Josephson junction
realized with a coherently coupled two-spin-component Bose-Einstein condensate. The …

We theoretically calculate and experimentally measure the beyond-mean-field (BMF)
equation of state in a coherently coupled two-component Bose-Einstein condensate (BEC) …

We present a detailed analysis of the relaxation dynamics in an extended bosonic
Josephson junction. We show that stochastic classical field simulations using Gross …

A paramagnetic-ferromagnetic quantum phase transition is known to occur at zero
temperature in a two-dimensional coherently coupled Bose mixture of dilute ultracold atomic …

A vortex molecule is a topological excitation in two coherently coupled superfluids consisting
of a vortex in each superfluid connected by a domain wall of the relative phase, also known …