Turbulence, the complicated fluid behavior of nonlinear and statistical nature, arises in many
physical systems across various disciplines, from tiny laboratory scales to geophysical and …

We present a theoretical analysis of some unexplored aspects of relaxed Bose–Einstein
condensate dark matter (BECDM) haloes. This type of ultralight bosonic scalar field dark …

Turbulence is characterized by a large number of degrees of freedom, distributed over
several length scales, that result in a disordered state of a fluid. The field of quantum …

The term quantum turbulence denotes the turbulent motion of quantum fluids, systems such
as superfluid helium and atomic Bose–Einstein condensates, which are characterized by …

This book introduces the theoretical description and properties of quantum fluids. The focus
is on gaseous atomic Bose–Einstein condensates and, to a minor extent, superfluid helium …

We show that fuzzy dark matter haloes exhibit spatial differentiation in the coherence of the
field configuration, ranging from completely coherent in the central solitonic core to …

Reconnections and interactions of filamentary coherent structures play a fundamental role in
the dynamics of fluids, redistributing energy and helicity among the length scales and …

Matter entanglement is a common chaotic structure found in both quantum and classical
systems. For classical turbulence, viscous vortices are like sinews in fluid flows, storing and …

We collect and describe the observed geometrical and dynamical properties of turbulence in
quantum fluids, particularly superfluid helium and atomic condensates for which more …

The understanding of turbulent flows is one of the biggest current challenges in physics, as
no first-principles theory exists to explain their observed spatio-temporal intermittency …