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Lecture Notes on General Relativity
Sean M. Carroll
These notes represent approximately one semester's worth of lectures on introductory general relativity for beginning graduate students in physics. Topics include manifolds, Rieman…
Dirichlet Topological Defects
Sean M. Carroll, Mark Trodden
We propose a class of field theories featuring solitonic solutions in which topological defects can end when they intersect other defects of equal or higher dimensionality. Such co…
Dark Matter with Time-Dependent Mass
Greg W. Anderson, Sean M. Carroll
We propose a simple model in which the cosmological dark matter consists of particles whose mass increases with the scale factor of the universe. The particle mass is generated by…
Boundary fields and renormalization group flow in the two-matrix model
Sean Carroll, Miguel Ortiz, Washington Taylor
We analyze the Ising model on a random surface with a boundary magnetic field using matrix model techniques. We are able to exactly calculate the disk amplitude, boundary magnetiza…
Is there evidence for cosmic anisotropy in the polarization of distant radio sources?
Sean M. Carroll, George B. Field
Measurements of the polarization angle and orientation of cosmological radio sources may be used to search for unusual effects in the propagation of light through the universe. Rec…