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COSMIC ANISOTROPIC DOOMSDAY IN BIANCHI TYPE I UNIVERSES

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dc.creatorMARÍA ANTONELLA CID MUÑOZ
dc.creatorPEDRO ALBERTO LABRAÑA MORAGA
dc.creatorYOSELIN MAURICIO CATALDO MONSALVES
dc.date2016
dc.date.accessioned2025-01-10T14:35:28Z
dc.date.available2025-01-10T14:35:28Z
dc.date.issued2016
dc.description.abstractIN THIS PAPER WE STUDY FINITE TIME FUTURE SINGULARITIES IN ANISOTROPIC BIANCHI TYPE I MODELS. IT IS SHOWN THAT THERE EXIST FUTURE SINGULARITIES SIMILAR TO BIG RIP ONES (WHICH APPEAR IN THE FRAMEWORK OF PHANTOM FRIEDMANN-ROBERTSON-WALKER COSMOLOGIES). SPECIFICALLY, IN AN ELLIPSOIDAL ANISOTROPIC SCENARIO OR IN A FULLY ANISOTROPIC SCENARIO, THE THREE DIRECTIONAL AND AVERAGE SCALE FACTORS MAY DIVERGE AT A FINITE FUTURE TIME, TOGETHER WITH ENERGY DENSITIES AND ANISOTROPIC PRESSURES. WE CALL THESE SINGULARITIES ?ANISOTROPIC BIG RIP SINGULARITIES.? WE SHOW THAT THERE ALSO EXIST BIANCHI TYPE I MODELS FILLED WITH MATTER, WHERE ONE OR TWO DIRECTIONAL SCALE FACTORS MAY DIVERGE. ANOTHER TYPE OF FUTURE ANISOTROPIC SINGULARITIES IS SHOWN TO BE PRESENT IN VACUUM COSMOLOGIES, I.E., KASNER SPACETIMES. THESE SINGULARITIES ARE INDUCED BY THE SHEAR SCALAR, WHICH ALSO BLOWS UP AT A FINITE TIME. WE CALL SUCH A SINGULARITY ?VACUUM RIP.? IN THIS CASE ONE DIRECTIONAL SCALE FACTOR BLOWS UP, WHILE THE OTHER TWO AND AVERAGE SCALE FACTORS TEND TO ZERO.
dc.formatapplication/pdf
dc.identifier.doi10.1063/1.4967954
dc.identifier.issn1089-7658
dc.identifier.issn0022-2488
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/8095
dc.languagespa
dc.publisherJOURNAL OF MATHEMATICAL PHYSICS
dc.relation.uri10.1063/1.4967954
dc.rightsPUBLICADA
dc.titleCOSMIC ANISOTROPIC DOOMSDAY IN BIANCHI TYPE I UNIVERSES
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE FISICA
ubb.Otra ReparticionDEPARTAMENTO DE FISICA
ubb.Otra ReparticionFACULTAD DE CIENCIAS
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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