Temperature fluctuations in a relativistic gas: Pressure corrections and possible consequences in the deconfinement transition

Simple item page
dc.article.number056014
dc.catalogadordfo
dc.contributor.authorCastaño Yepes, Jorge David
dc.contributor.authorLoewe, Marcelo
dc.contributor.authorMuñoz, Enrique
dc.contributor.authorRojas Gómez-Lobo, Juan Cristóbal
dc.date.accessioned2025-03-20T14:37:00Z
dc.date.available2025-03-20T14:37:00Z
dc.date.issued2024
dc.description.abstractIn this work, we study the effects of random temperature fluctuations on the partition function of a quantum system by means of the replica method. This picture provides a conceptual model for a quantum nonequilibrium system, depicted as an ensemble of subsystems at different temperatures, randomly distributed with respect to a given mean value. We then assume the temperature displays stochastic fluctuations T ¼ T0 þ δT with respect to its ensemble average value T0, with zero mean standard deviation δT ¼0 and δT2 ¼ Δ. By means of the replica method, we obtain the average grand canonical potential, leading to the equation of state and the corresponding excess pressure caused by these fluctuations with respect to the equilibrium system at a uniform temperature. Our findings reveal an increase in pressure as the system’s ensemble average temperature T0 rises, consistently exceeding the pressure observed in an equilibrium state. We applied our general formalism to three paradigmatic physical systems; the relativistic Fermi gas, the ideal gas of photons, and a gas of non-Abelian gauge fields (gluons) in the noninteracting limit. Finally, we explore the implications for the deconfinement transition in the context of the simple bag model, where we show that the critical temperature decreases.
dc.description.funderANID
dc.description.funderFONDECYT
dc.description.funderCONICYT FONDECYT
dc.fechaingreso.objetodigital2025-03-20
dc.fuente.origenSCOPUS
dc.identifier.doi10.1103/PhysRevD.110.056014
dc.identifier.issn2470-0010
dc.identifier.scopusidSCOPUS_ID:85203640452
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/102869
dc.information.autorucInstituto de Física; Castaño Yepes Jorge David; 0000-0002-8654-1304; 1248529
dc.information.autorucInstituto de Física; Rojas Gomez-lobo Juan Cristobal; S/I; 69197
dc.language.isoen
dc.nota.accesoContenido completo
dc.revistaPhysical Review D
dc.rightsacceso abierto
dc.rights.licenseAtribución/Reconocimiento 4.0 Internacional
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.titleTemperature fluctuations in a relativistic gas: Pressure corrections and possible consequences in the deconfinement transition
dc.title.alternativeIndexing to Body Surface Area Diminishes GFR Estimation and Increases Chronic Kidney Disease Staging in Overweight and Obese Population
dc.typeartículo
dc.volumen110
sipa.codpersvinculados1248529
sipa.codpersvinculados69197
sipa.trazabilidadSCOPUS;2024-09-22
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
PhysRevD.110.056014.pdf
Size:
890.09 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas