Gauge invariant fluid lagrangian and its application to cosmology
| dc.creator | Sulaiman, A. | |
| dc.creator | Djun, T. P. | |
| dc.creator | Handoko, L. T. | |
| dc.date | 2005-08-13 | |
| dc.date | 2009-01-01 | |
| dc.date.accessioned | 2026-07-07T12:23:25Z | |
| dc.date.available | 2026-07-07T12:23:25Z | |
| dc.description | 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 $A_μ\equiv ε_μϕ$, where $ε_μ$ contains the fluid kinematics and $ϕ$ 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. | |
| dc.description | 7 pages, revised version for journal publication and adding an application to cosmology | |
| dc.identifier | https://arxiv.org/abs/physics/0508086 | |
| dc.identifier | http://arxiv.org/abs/physics/0508086 | |
| dc.identifier | J. Theor. Comput. Stud. 5 (2006) 0401 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/213980 | |
| dc.subject | Fluid Dynamics | |
| dc.title | Gauge invariant fluid lagrangian and its application to cosmology | |
| dc.type | text |