385 citations · 3.3k across the 77 of their papers we have counts for
78 papers
Cosmological evolution of Witten superconducting string networks
I. Yu. Rybak, C. J. A. P. Martins, Patrick Peter +1
We consider the evolution of current-carrying cosmic string networks described by the charge-velocity-dependent one scale (CVOS) model beyond the linear equation of state regime, s…
Modelling the braking "index'' of isolated pulsars
E. C. A. Araujo, V. A. De Lorenci, P. Peter +1
An isolated pulsar is a rotating neutron star possessing a high magnetic dipole moment that generally makes a finite angle with its rotation axis. As a consequence, the emission of…
Ambiguous power spectrum from a quantum bounce
Jaime de Cabo Martin, Przemysław Małkiewicz, Patrick Peter
A quantum cosmological bouncing model may exhibit an ambiguity stemming from the nonclassical nature of the background evolution: two classically equivalent theories can produce tw…
Quantum cosmological gravitational waves?
Amaury Micheli, Patrick Peter
General relativity and its cosmological solution predicts the existence of tensor modes of perturbations evolving on top of our Friedman-Lemaître-Robertson-Walker expanding Univers…
Clocks and trajectories in quantum cosmology
Przemysław Małkiewicz, Patrick Peter, S. D. P. Vitenti
We consider a simple cosmological model consisting of an empty Bianchi I Universe, whose Hamiltonian we deparametrise to provide a natural clock variable. The model thus effectivel…
Time in quantum cosmology
Claus Kiefer, Patrick Peter
Time in quantum gravity is not a well-defined notion, despite its central role in the very definition of dynamics. Using the formalism of quantum geometrodynamics, we shortly revie…