3 papers
gr-qc2002
Precession of a particle with anomalous magnetic moment in electromagnetic and gravitational pp-wave fields
Alexander Balakin, Veronika Kurbanova, Winfried Zimdahl
We present an exact solution of the Bargmann-Michel-Telegdi (BMT) equations for the dynamics of a spin particle in external electromagnetic and gravitational pp-wave fields. We dem…
astro-ph1999
Self-interacting cosmic fluids: Particle production, causal evolution, and vacuum decay
Winfried Zimdahl
We discuss two different realizations of a ``deflationary'' scenario of the early universe which imply a smooth transition from an initial de Sitter stage to a subsequent radiation…
gr-qc1998
Covariant cosmological perturbation dynamics in the inflationary universe
Winfried Zimdahl
The linear cosmological perturbation theory of almost homogeneous and isotropic perfect fluid and scalar field universes is reconsidered and formally simplified. Using the existenc…