Pith. sign in

REVIEW 6 cited by

Relativistic Viscous Hydrodynamics in the Density Frame: Numerical Tests and Comparisons

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2412.10303 v2 pith:FMNKIBST submitted 2024-12-13 nucl-th gr-qc

Jay Bhambure , Aleksas Mazeliauskas , Jean-Francois Paquet , Rajeev Singh , Mayank Singh , Derek Teaney , Fabian Zhou This is my paper
classification nucl-thgr-qc
keywords densityframehydrodynamicsrelativisticviscousapplicabilitycomparefluid
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

We conduct a numerical study of relativistic viscous fluid dynamics in the Density Frame for one-dimensional fluid flows. The Density Frame is a formulation of relativistic viscous hydrodynamics that is first-order in time, requires no auxiliary fields, and has no non-hydrodynamic modes. We compare our results to QCD kinetic theory simulations and find excellent agreement within the regime of applicability of hydrodynamics. Additionally, the Density Frame results remain well-behaved and robust near the boundary of applicability. We also compare our findings to the second-order-in-time hydrodynamic theory developed by Bemfica, Disconzi, Noronha, and Kovtun (BDNK) and a well-known M\"uller-Israel-Stewart-type hydrodynamics code, MUSIC, which is commonly used to simulate heavy-ion collisions.

Discussion (0). Sign in to comment.

Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. How Lorentz boosts reshape relaxation spectra

    gr-qc 2026-01 accept novelty 8.0 of 10

    Under an Onsager-type symmetry, boosted k=0 non-hydrodynamic relaxation rates of a relativistic fluid are bounded by a(1-v)/γ ≤ iω' ≤ b/[γ(1-v)] in terms of rest-frame bounds a,b and boost speed v.

  2. Noncovariant parabolic theories of relativistic diffusion

    gr-qc 2025-05 accept novelty 6.0 of 10

    A quantitative analysis shows that observer-dependent effects in a new relativistic diffusion theory scale like the square root of time, slower than standard truncation errors, yet remain finite as speeds approach light.

  3. The initial data of effective field theories of relativistic viscous fluids and gravity

    gr-qc 2026-02 conditional novelty 5.0 of 10

    Initial data for the unphysical modes in well-posed EFTs should be fixed by order reduction, which suppresses fast modes without altering the equations of motion.

  4. Relativistic Dispersion Spectra across Lorentz boosted frames: Spurious modes and the enigma of causality

    hep-th 2025-12 conditional novelty 5.0 of 10

    Rest-frame dispersion modes can be mapped into Lorentz-boosted frames through a parametric re-parametrization; the boost-generated 'spurious' roots appear exactly when the mode count is not conserved, which the author...

  5. Mapping Sparse Triangular Solves to GPUs via Fine-grained Domain Decomposition

    cs.PF 2025-08 unverdicted novelty 5.0 of 10

    A domain-decomposition scheme sizes subdomains to GPU shared memory to remove synchronization from sparse triangular solves, reporting 10.7x and 3.2x speedups for triangular solves and ILU0-BiCGSTAB on the AMD MI210.

  6. Theory Summary

    nucl-th 2025-09 unverdicted

    A conference summary paper reports selected theory results from Quark Matter 2025 in heavy-ion physics, with no new original research.

Pith tools