activity
20222026
most citedFar-from-equilibrium kinetic dynamics of theory in an expanding universe

13 citations · 34 across the 12 of their papers we have counts for

collaborators

13 papers

cond-mat.stat-mech2026

Fluctuation--response relations from an emergent symmetry in the rotating stochastic Landau model

Dhruv Kush, Nicki Mullins, Mauricio Hippert +1

In this work, we investigate the extent to which fluctuation--response relations emerge from coarse-grained stochastic dynamics alone, and which aspects instead depend on additiona…

hep-ph2026

Covariant diffusion tensor for jet momentum broadening out of equilibrium

Isabella Danhoni, Nicki Mullins, Jorge Noronha

Jets are produced in the earliest stages of heavy-ion collisions, where they can interact with a medium that is not yet close to local equilibrium. Motivated by this, we generalize…

nucl-th2026

Solving BDNK diffusion using physics-informed neural networks

Vicente Chomalí-Castro, Nick Clarisse, Nicki Mullins +1

In this work, we reformulate the relativistic BDNK (Bemfica-Disconzi-Noronha-Kovtun) diffusion equation in flux-conservative form, and solve the resulting equations in D usi…

nucl-th2025

A new effective theory for stochastic relativistic hydrodynamics

Nicki Mullins, Mauricio Hippert, Jorge Noronha

Thermal fluctuations are a fundamental feature of dissipative systems that are essential for understanding physics near the expected critical point of QCD and in small systems. Whe…

cond-mat.stat-mech2025★ 1 cited

Emergent Viscous Hydrodynamics From a Single Quantum Particle

Zhi-Li Zhou, Mauricio Hippert, Nicki Mullins +1

We investigate an explicit example of how spatial decoherence can lead to hydrodynamic behavior in the late-time, long-wavelength regime of open quantum systems. We focus on the ca…

nucl-th2025

Effective action for relativistic hydrodynamics from Crooks fluctuation theorem

Nicki Mullins, Mauricio Hippert, Jorge Noronha

A new effective theory framework for fluctuating hydrodynamics in the relativistic regime is derived using standard thermodynamical principles and general properties of non-equilib…

nucl-th2024★ 11 cited

Modelling stochastic fluctuations in relativistic kinetic theory

Gabriel Soares Rocha, Lorenzo Gavassino, Nicki Mullins

Using the information current, we develop a Lorentz-covariant framework for modeling equilibrium fluctuations in relativistic kinetic theory in the grand-canonical ensemble. The re…

nucl-th2024

Causal and Stable Relativistic Hydrodynamic Fluctuations

Nicki Mullins, Mauricio Hippert, Jorge Noronha +1

When two nuclei collide close to the speed of light, a fluid state known as the quark-gluon plasma is formed. Attempts to understand the dynamics of this fluid have generated signi…

nucl-th2024★ 9 cited

Consistent inclusion of fluctuations in first-order causal and stable relativistic hydrodynamics

Lorenzo Gavassino, Nicki Mullins, Mauricio Hippert

We construct, for the first time, a Bemfica-Disconzi-Noronha-Kovtun (BDNK) theory for linear stochastic fluctuations, which is proved to be mathematically consistent, causal, and c…

nucl-th2023

A new approach to stochastic relativistic fluid dynamics from information flow

Nicki Mullins, Mauricio Hippert, Lorenzo Gavassino +1

We present a new general formalism for introducing thermal fluctuations in relativistic hydrodynamics, which incorporates recent developments on the causality and stability of rela…

hep-th2023

Relativistic hydrodynamic fluctuations from an effective action: causality, stability, and the information current

Nicki Mullins, Mauricio Hippert, Lorenzo Gavassino +1

Causality is necessary for retarded Green's functions to remain retarded in all inertial frames in relativity, which ensures that dissipation of fluctuations is a Lorentz invariant…

nucl-th2023

Stochastic fluctuations in relativistic fluids: causality, stability, and the information current

Nicki Mullins, Mauricio Hippert, Jorge Noronha

We develop a general formalism for introducing stochastic fluctuations around thermodynamic equilibrium which takes into account, for the first time, recent developments on the cau…

hep-ph2022★ 13 cited

Far-from-equilibrium kinetic dynamics of theory in an expanding universe

Nicki Mullins, Gabriel S. Denicol, Jorge Noronha

We investigate the far-from-equilibrium behavior of the Boltzmann equation for a gas of massless scalar field particles with quartic (tree level) self-interactions () in Frie…