Publications (10)
Constraining Van der Waals quintessence by observations
S. Capozziello, V. F. Cardone, S. Carloni +4
We discuss an alternative approach to quintessence modifying the usual equation of state of the cosmological fluid in order to see if going further than the approximation of perfec…
Magnetic field amplification in CDM anisotropic collapse
M. Bruni, R. Maartens, C. G. Tsagas
We use the Zel'dovich approximation to analyse the amplification of magnetic fields in gravitational collapse of cold dark matter during the mildly nonlinear regime, and identify t…
Prospects for Fundamental Physics with LISA
Enrico Barausse, Emanuele Berti, Thomas Hertog +318
In this paper, which is of programmatic rather than quantitative nature, we aim to further delineate and sharpen the future potential of the LISA mission in the area of fundamental…
On Relativistic Perturbations of Second and Higher Order
M. Bruni, S. Matarrese, S. Mollerach +1
We present the results of a study of the gauge dependence of spacetime perturbations. In particular, we consider gauge invariance in general, we give a generating formula for gauge…
Coupling of Radial and Axial non-Radial Oscillations of Compact Stars: Gravitational Waves from first-order Differential Rotation
A. Passamonti, M. Bruni, L. Gualtieri +2
We investigate the non-linear coupling between radial and non-radial oscillations of static spherically symmetric neutron stars as a possible mechanism for the generation of gravit…
A solution to the anisotropy problem in bouncing cosmologies
V. Bozza, M. Bruni
Bouncing cosmologies are often proposed as alternatives to standard inflation for the explanation of the homogeneity and flatness of the universe. In such scenarios, the present co…