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Quasi-monoenergetic laser-plasma acceleration of electrons to 2 GeV

- Xiaoming Wang, R. Zgadzaj,
+20 authors M. Downer - PhysicsNature communications
- 11 June 2013

TLDR

Geometrothermodynamics of black holes

- H. Quevedo
- Physics
- 24 April 2007

The thermodynamics of black holes is reformulated within the context of the recently developed formalism of geometrothermodynamics. This reformulation is shown to be invariant with respect to… Expand

Normal Coordinates and Primitive Elements¶in the Hopf Algebra of Renormalization

- C. Chryssomalakos, H. Quevedo, M. Rosenbaum, J. D. Vergara
- Mathematics
- 25 May 2001

Abstract: We introduce normal coordinates on the infinite dimensional group G introduced by Connes and Kreimer in their analysis of the Hopf algebra of rooted trees. We study the primitive elements… Expand

Motion of charged test particles in Reissner-Nordström spacetime

- D. Pugliese, H. Quevedo, R. Ruffini
- Physics
- 7 March 2011

We investigate the circular motion of charged test particles in the gravitational field of a charged mass described by the Reissner-Nordstr\"om (RN) spacetime. We study in detail all the spatial… Expand

Multipole Moments in General Relativity —Static and Stationary Vacuum Solutions—

- H. Quevedo
- Physics
- 1990

In the first part of this paper, we review the most important properties of the axisymmetric and stationary solutions of Einstein's vacuum field equations, the solution generating techniques… Expand

Exterior and interior metrics with quadrupole moment

- H. Quevedo
- Physics
- 23 March 2010

We present the Ernst potential and the line element of an exact solution of Einstein’s vacuum field equations that contains as arbitrary parameters the total mass, the angular momentum, and the… Expand

Geometrothermodynamics of higher dimensional black holes

- A. Bravetti, D. Momeni, R. Myrzakulov, H. Quevedo
- Physics
- 30 November 2012

We study the thermodynamics and geometrothermodynamics of different black hole configurations in more than four spacetime dimensions. We use the response functions to find the conditions under which… Expand

Equatorial circular motion in Kerr spacetime

- D. Pugliese, H. Quevedo, R. Ruffini
- Physics
- 15 May 2011

We analyze the properties of circular orbits of test particles on the equatorial plane of a rotating central mass whose gravitational eld is described by the Kerr spacetime. For rotating black holes… Expand

Gravitational field of compact objects in general relativity

- K. Boshkayev, H. Quevedo, R. Ruffini
- Physics
- 12 July 2012

We study some exact and approximate solutions of Einstein's equations that can be used to describe the gravitational field of astrophysical compact objects in the limiting case of slow rotation and… Expand

Equatorial circular orbits of neutral test particles in the Kerr-Newman spacetime

- D. Pugliese, H. Quevedo, R. Ruffini
- Physics
- 25 March 2013

We present a detailed analysis of the orbital circular motion of electrically neutral test particles on the equatorial plane of the Kerr-Newman spacetime. Many details of the motion in the cases of… Expand

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