1.4k citations · 11.5k across the 75 of their papers we have counts for
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Optimising large galaxy surveys for ISW detection
Marian Douspis, Patricia G. Castro, Chiara Caprini +1
We report on investigations of the power of next generation cosmic microwave background and large scale structure surveys in constraining the nature of dark energy through the cros…
Challenges for creating magnetic fields by cosmic defects
Lukas Hollenstein, Chiara Caprini, Robert Crittenden +1
We analyse the possibility that topological defects can act as a source of magnetic fields through the Harrison mechanism in the radiation era. We give a detailed relativistic deri…
Gravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach
Chiara Caprini, Ruth Durrer, Geraldine Servant
Gravitational wave production from bubble collisions was calculated in the early nineties using numerical simulations. In this paper, we present an alternative analytic estimate, r…
Superluminal motion and closed signal curves
Camille Bonvin, Chiara Caprini, Ruth Durrer
We discuss some properties of Lorentz invariant theories which allow for superluminal motion. We show that, if signals are always sent forward in time, closed curves along which si…
On the frequency of gravitational waves
Chiara Caprini, Ruth Durrer, Riccardo Sturani
We show that there are physically relevant situations where gravitational waves do not inherit the frequency spectrum of their source but its wavenumber spectrum.
No-go theorem for k-essence dark energy
Camille Bonvin, Chiara Caprini, Ruth Durrer
We demonstrate that if k-essence can solve the coincidence problem and play the role of dark energy in the universe, the fluctuations of the field have to propagate superluminally…