Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of LisbonPT1.3k papers
- Universidade Técnica de LisboaPT388 papers
- Centre National de la Recherche ScientifiqueFR326 papers
- Instituto de Plasmas e Fusão NuclearPT209 papers
- European Organization for Nuclear ResearchCH202 papers
- Centro de Física Teórica de Partículas201 papers
- Instituto Politécnico de LisboaPT190 papers
- Instituto de TelecomunicaçõesPT175 papers
- Universitat de ValènciaES175 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR143 papers
- Centro de Astrofísica e GravitaçãoPT133 papers
- LIP - Laboratory of Instrumentation and Experimental Particle PhysicsPT133 papers
8 papers · 2 filters
Generalized Chaplygin gas model, supernovae and cosmic topology
M. C. Bento, O. Bertolami, M. J. Rebouças +1
In this work we study to which extent the knowledge of spatial topology may place constraints on the parameters of the generalized Chaplygin gas (GCG) model for unification of dark…
Black holes and fundamental physics
José P. S. Lemos
We give a review of classical, thermodynamic and quantum properties of black holes relevant to fundamental physics.
A class of exact solutions of Einstein's field equations in higher dimensional spacetimes, d: Majumdar-Papapetrou solutions
Jose' P. S. Lemos, Vilson T. Zanchin
The Newtonian theory of gravitation and electrostatics admit equilibrium configurations of charged fluids where the charge density can be equal to the mass density, in appropriate…
The Tolman-Bondi--Vaidya Spacetime: matching timelike dust to null dust
Sijie Gao, Jose' P. S. Lemos
The Tolman-Bondi and Vaidya solutions are two solutions to Einstein equations which describe dust particles and null fluid, respectively. We show that it is possible to match the t…
Local conditions for the generalized covariant entropy bound
Sijie Gao, Jose' P. S. Lemos
A set of sufficient conditions for the generalized covariant entropy bound given by Strominger and Thompson is as follows: Suppose that the entropy of matter can be described by an…
Homogeneous cosmologies from the quasi-Maxwell formalism
Joao Costa, Jose Natario
We show how to use the quasi-Maxwell formalism to obtain solutions of Einstein's field equations corresponding to homogeneous cosmologies - namely Einstein's universe, Godel's univ…
Noncommutative scalar field minimally coupled to gravity
Orfeu Bertolami
A model for noncommutative scalar fields coupled to gravity based on the generalization of the Moyal product is proposed. Solutions compatible with homogeneous and isotropic flat R…
What kind of noncommutative geometry for quantum gravity ?
Pierre Martinetti
We give a brief account of the description of the standard model in noncommutative geometry as well as the thermal time hypothesis, questioning their relevance for quantum gravity.