Elasticity typically refers to a material's ability to store energy, whereas viscosity refers to a
material's tendency to dissipate it. In this review, we discuss fluids and solids for which this is …

Motility is a fundamental feature of living matter, encompassing single cells and collective
behavior. Such living systems are characterized by nonconservativity of energy and a large …

Mechanical metamaterials made of flexible building blocks can exhibit a plethora of extreme
mechanical responses, such as negative elastic constants, shape-changes …

When a body moves through a fluid, it can experience a force orthogonal to its movement
called lift force. Odd viscous fluids break parity and time-reversal symmetry, suggesting the …

We construct a hydrodynamic framework describing plastic deformations in electronic
crystals. The framework accounts for pinning, phase, and momentum relaxation effects due …

Odd elasticity describes active elastic systems whose stress-strain relationship is not
compatible with a potential energy. As the requirement of energy conservation is lifted from …

The force autocorrelation function (FACF), a concept of fundamental interest in statistical
mechanics, encodes the effect of interactions on the dynamics of a tagged particle. In …

Stress-strain constitutive relations in solids with an internal angular degree of freedom can
be modeled using Cosserat (also called micropolar) elasticity. In this paper, we explore …

We present a three-dimensional computational study of the impact of external magnetic
fields on the dynamics of superparamagnetic ferrofluid droplets and rheology of dilute …

At its core, hydrodynamics is a many-body low-energy effective theory for the long-
wavelength, long-timescale dynamics of conserved charges in systems close to …