activity
20202026
most citedHydrodynamics for charge density waves and their holographic duals

43 citations · 55 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.HE2026

Finite-volume scheme for first-order viscoresistive relativistic magnetohydrodynamics

Ruben Lier, Jay Armas, Oliver Porth

We present a numerical implementation of dissipative relativistic magnetohydrodynamics based on Bemfica-Disconzi-Noronha-Kovtun (BDNK) theory, in which first-order corrections rend…

hep-th2026

Thermodynamics of ideal spin fluids and pseudo-gauge ambiguity

Jay Armas, Akash Jain

Conserved currents of relativistic spin fluids derived from microscopic models are known to violate local thermodynamic relations. We present a systematic analysis of pseudo-gauge…

cond-mat.soft2025

On the temperature of an active nematic

Jay Armas, Akash Jain, Ruben Lier

We employ a novel hydrodynamic framework for active matter coupled to an environment to study the local temperature of an active nematic, assuming proximity to thermal equilibrium.…

hep-th2025

Chiral anomaly from (anomalous) spin hydrodynamics

Jay Armas, Giorgos Batzios

We show that the low energy fluctuations of spinning black Dp branes are described by a theory of spin hydrodynamics on a spacetime in whi…

astro-ph.HE2025★ 2 cited

Resistive relativistic magnetohydrodynamics without Amperes Law

Ruben Lier, Akash Jain, Jay Armas +1

Resistive magnetohydrodynamics is thought to play a key role in transient astrophysical phenomena such as black hole flares and neutron star magnetospheres. When performing numeric…

cond-mat.soft2024★ 7 cited

Hydrodynamics of thermal active matter

Jay Armas, Akash Jain, Ruben Lier

Active matter concerns many-body systems comprised of living or self-driven agents that collectively exhibit macroscopic phenomena distinct from conventional passive matter. Using…

hep-th2024★ 3 cited

Higher-group global symmetry and the bosonic M5 brane

Jay Armas, Giorgos Batzios, Akash Jain

Higher-group symmetries are combinations of higher-form symmetries which appear in various field theories. In this paper, we explain how higher-group symmetries arise in 10d and 11…

hep-th2020★ 43 cited

Hydrodynamics for charge density waves and their holographic duals

Jay Armas, Akash Jain

We formulate a theory of dissipative hydrodynamics with spontaneously broken translations, describing charge density waves in a clean isotropic electronic crystal. We identify a no…