5 papers
Chapman-Enskog expansion for chirally colliding disks
Ruben Lier, PaweÅ Matus
We study a two-dimensional fluid of hard disks undergoing chiral, energy- and momentum-conserving collisions. We show that despite the microscopic breaking of time-reversal symmetr…
Defects in Wigner crystals: fracton-elasticity duality and vacancy proliferation
PaweÅ Matus
We develop a low-energy field theory for electrically charged crystals. Using the tools of fracton-elasticity duality, generalized to accommodate the magnetic 1-form symmetry of el…
Non-relativistic transport from frame-indifferent kinetic theory
PaweŠMatus, Rajesh Biswas, Piotr Surówka +1
This paper explores the application of Newton-Cartan geometry to the kinetic theory of gases that includes non-relativistic gravitational effects and the principle of general covar…
Quadrupole gauge theory: anti-Higgs mechanism and elastic dual
Aleksander GÅódkowski, PaweÅ Matus, Francisco Peña-BenÃtez +1
Motivated by the duality between elasticity and fracton gauge theory, we study an extension of the gauge group that includes the quadrupole moment. Remarkably, we find that spontan…
Molecular modelling of odd viscoelastic fluids
PaweŠMatus, Ruben Lier, Piotr Surówka
We consider an active, stochastic microscopic model of particles suspended in a fluid and show that the coarse-grained description of this model renders odd viscoelasticity. The pa…