352 citations · 819 across the 15 of their papers we have counts for
4 papers · 1 filter
Complex supergravity quintessence models confronted with Sn Ia data
K. Henttunen, T. Multamaki, I. Vilja
A class of supergravity inspired quintessence models is studied by comparing to cosmological data. The set of considered models includes several previously studied quintessential p…
Current Acceleration from Dilaton and Stringy Cold Dark Matter
Tirthabir Biswas, Robert Brandenberger, Anupam Mazumdar +1
We argue that string theory has all the ingredients to provide us with candidates for the cold dark matter and explain the current acceleration of our Universe. In any generic stri…
Cosmological constraints on string scale and coupling arising from tachyonic instability
Kari Enqvist, Asko Jokinen, Anupam Mazumdar +2
We demonstrate that string motivated inflation ending via tachyonic instability leaves a detectable imprint on the cosmic microwave background (CMB) radiation by virtue of the exci…
Multiple Inflation, Cosmic String Networks and the String Landscape
C. P. Burgess, Richard Easther, Anupam Mazumdar +2
Motivated by the string landscape we examine scenarios for which inflation is a two-step process, with a comparatively short inflationary epoch near the string scale and a longer p…