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Dive into the research topics where Sergio del Campo is active.

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Featured researches published by Sergio del Campo.


Physics Letters B | 2001

Holographic principle and the dominant energy condition for Kasner type metrics

Mauricio Cataldo; Norman Cruz; Sergio del Campo; Samuel Lepe

Abstract In this Letter we study adiabatic anisotropic matter filled Bianchi type I models of the Kasner form together with the cosmological holographic bound. We find that the dominant energy condition and the holographic bound give precisely the same constraint on the scale factor parameters that appear in the metric.


Physics Letters B | 2000

(2+1)-dimensional black hole with Coulomb-like field

Mauricio Cataldo; Norman Cruz; Sergio del Campo; Alberto García

Abstract A (2+1)-static black hole solution with a nonlinear electric field is derived. The source to the Einstein equations is a nonlinear electrodynamics, satisfying the weak energy conditions, and it is such that the energy momentum tensor is traceless. The obtained solution is singular at the origin of coordinates. The derived electric field E ( r ) is given by E ( r )= q / r 2 , thus it has the Coulomb form of a point charge in the Minkowski spacetime. This solution describes charged (anti)-de Sitter spaces. An interesting asymptotically flat solution arises for Λ =0.


Physical Review D | 2003

Extended open inflationary universes

Sergio del Campo; Ramon Herrera

In this paper we study a type of one-field model for open inflationary universe models in the context of the Jordan-Brans-Dicke theory. In the scenario of a one-bubble universe model we determine and characterize the existence of the Coleman-De Lucia instanton, together with the period of inflation after tunnelling has occurred. Our results are analogous to those found in the Einstein General Relativity models.


General Relativity and Gravitation | 2001

LETTER: BTZ Black Hole from (3+1) Gravity

Mauricio Cataldo; Sergio del Campo; Alberto García

We propose an approach for constructing spatial slices of (3+1) spacetimes with cosmological constant but without a matter content, which yields (2+1) vacuum with Λ solutions. The reduction mechanism from (3+1) to (2+1) gravity is supported on a criterion in which the Weyl tensor components are required to vanish together with a dimensional reduction via an appropriate foliation. By using an adequate reduction mechanism from the Plebański–Carter[A] solution in (3+1) gravity, the (2+1) BTZ solution can be obtained.


Physical Review D | 2002

Curvature of the universe and the dark energy potential

Sergio del Campo

The flatness of an accelerating universe model (characterized by a dark energy scalar field


Monthly Notices of the Royal Astronomical Society | 2003

Closed universe and the first Doppler peak of the cosmic microwave background spectrum

Sergio del Campo

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Physical Review D | 2001

Viscous cosmologies in scalar tensor theories for Kasner type metrics

Mauricio Cataldo; Sergio del Campo; Patricio Salgado

is mimicked from a curved model that is filled with, apart from the cold dark matter component, a quintessencelike scalar field Q. In this process, we characterize the original scalar potential


Monthly Notices of the Royal Astronomical Society | 2000

A critical-density closed Universe in Brans-Dicke Theory

Sergio del Campo; Norman Cruz

V(Q)


Journal of Physics: Conference Series | 2010

H{z) diagnostics to discriminate dark energy models

Sergio del Campo; Ramon Herrera; Diego Pavon

and the mimicked scalar potential


Physics Letters B | 1991

Quantum cosmology for hyperextended inflation

Sergio del Campo

V(ensuremath{chi})

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Diego Pavon

Autonomous University of Barcelona

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