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- Centre National de la Recherche ScientifiqueFR176 papers
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31 papers · 1 filter
Testing braneworlds with the binary pulsar
Ruth Durrer, Philippe Kocian
In this letter we calculate the emission of gravity waves by the binary pulsar in the framework of five dimensional braneworlds. We consider only spacetimes with one compact extra-…
QED from six-dimensional vortex and gauge anomalies
Seif Randjbar-Daemi, Mikhail Shaposhnikov
Starting from an anomaly-free Abelian Higgs model coupled to gravity in a 6-dimensional space-time we construct an effective four-dimensional theory of charged fermions interacting…
Electromagnetic String Fluid in Rolling Tachyon
Chanju Kim, Hang Bae Kim, Yoonbai Kim +1
We study Born-Infeld type effective action for unstable D3-brane system including a tachyon and an Abelian gauge field, and find the rolling tachyon with constant electric and magn…
Rolling Tachyons in String Cosmology
Chanju Kim, Hang Bae Kim, Yoonbai Kim
We study the role of rolling tachyons in the cosmological model with dilatonic gravity. In the string frame, flat space solutions of both initial-stage and late-time are obtained i…
A Formalism to Analyze the Spectrum of Brane World Scenarios
Seif Randjbar-Daemi, Mikhail Shaposhnikov
In this paper we develop a formalism to analyze the spectrum of small perturbations about arbitrary solutions of Einstein, Yang-Mills and scalar systems. We consider a general syst…
Localizing gravity on a 't Hooft-Polyakov monopole in seven dimensions
Ewald Roessl, Mikhail Shaposhnikov
We present regular solutions for a brane world scenario in the form of a 't Hooft-Polyakov monopole living in the three-dimensional spherical symmetric transverse space of a seven-…