dorsal/arxiv
View SchemaGauge invariant fluid lagrangian and its application to cosmology
| Authors | A. Sulaiman, T. P. Djun, L. T. Handoko |
|---|---|
| Categories | |
| ArXiv ID | physics/0508086 |
| URL | https://arxiv.org/abs/physics/0508086 |
| Journal | J. Theor. Comput. Stud. 5 (2006) 0401 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
A lagrangian for relativistic fluid systems with matters inside is developed using gauge principle. In the model, the gauge boson represents the fluid field in a form $A_\mu \equiv \epsilon_\mu \phi$, where $\epsilon_\mu$ contains the fluid kinematics and $\phi$ is an auxiliary field representing the fluid distribution. This leads to a new relativistic equation of motion for fluid, but which further coincides to the classical Euler equation at non-relativistic limit. The lagrangian is applied to model homogeneous universe as a bulk pure fluid system. Taking the simplest case of fluid with radial velocity and uniform distribution, the free energy density is calculated and its behaviour around Hubble distance is discussed.
{
"annotation_id": "88323da1-a3a8-4576-9936-dee1ada81ad7",
"date_created": "2026-03-02T18:01:00.526000Z",
"date_modified": "2026-03-02T18:01:00.526000Z",
"file_hash": "5647e7384e41e322133878bbf54b0fe8c74d8111b08fbc27bc76a849f5a49038",
"private": false,
"record": {
"abstract": "A lagrangian for relativistic fluid systems with matters inside is developed\nusing gauge principle. In the model, the gauge boson represents the fluid field\nin a form $A_\\mu \\equiv \\epsilon_\\mu \\phi$, where $\\epsilon_\\mu$ contains the\nfluid kinematics and $\\phi$ is an auxiliary field representing the fluid\ndistribution. This leads to a new relativistic equation of motion for fluid,\nbut which further coincides to the classical Euler equation at non-relativistic\nlimit. The lagrangian is applied to model homogeneous universe as a bulk pure\nfluid system. Taking the simplest case of fluid with radial velocity and\nuniform distribution, the free energy density is calculated and its behaviour\naround Hubble distance is discussed.",
"arxiv_id": "physics/0508086",
"authors": [
"A. Sulaiman",
"T. P. Djun",
"L. T. Handoko"
],
"categories": [
"physics.flu-dyn"
],
"journal_ref": "J. Theor. Comput. Stud. 5 (2006) 0401",
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Gauge invariant fluid lagrangian and its application to cosmology",
"url": "https://arxiv.org/abs/physics/0508086"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "9e5de772-8426-4207-be90-d2056166a270",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}