Simon Fraser University
SFU Cosmology Seminars

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Tuesday, 24 April 2007, 14:00 in P8445B

Dr. Evgeny Sorkin (UBC)

The pinching black strings

I discuss the black holes with various horizon topologies, that exist in the spacetimes with extra compactified dimensions, and the phase transitions between them. In this talk I particularize to the spacetime with a single compact dimension. The relevant black objects are the black string, whose horizon wraps the extra-dimensions, and the localized black hole. The uniform string becomes unstable if 'too thin', and decays into a nonuniform state which apparently evolves until it pinches off and a localized black hole is formed. Currently, the dynamical evolution remains elusive, thus we are set to construct the phase diagram of the static solutions. In particular, the extremely non-uniform black strings are numerically constructed, and the local geometry near the pinch off is explored.

Seminars in 2006:

2006-10-04 12:45 in P8445A - Serge Winitzki (Ludwig Maximilians University, Munich): Predictions in eternally inflating universe
2006-11-22 12:45 in P8445B - Ingrid Stairs (UBC): Relativistic binary pulsars
2006-11-23 14:00 in P8445B - Veselin Filev (University of Southern California): Adding flavors in AdS/CFT correspondence
2006-11-30 14:00 in P8445B - Marco Peloso (University of Minnesota): The role of SUSY flat directions in reheating
2006-12-05 13:00 in P8445B - Jasper Wall (UBC): Submillimetre galaxies and star-formation in the early Universe
2007-01-11 13:00 in P8445B - Krzysztof Sliwa (Tufts University): Supersymmetry for particle physicists
2007-01-16 14:00 in SSB7109 - Bojan Losic (University of Alberta): Aspects of nonlinear perturbation theory in cosmology
2007-02-01 13:00 in P8445B - Adam Moss (UBC): Dark energy and the rubber band
2007-03-08 13:00 in P8445B - Catherine Heymans (UBC): Probing dark matter and dark energy with weak gravitational lensing
2007-03-22 13:00 in P8445B - Ira Wasserman (Cornell): The neutron star in 1930 -- and today (special colloquium)
2007-03-23 12:30 in P8445B - Ira Wasserman (Cornell): Dynamics of the r mode instability of neutron stars
2007-03-27 14:00 in SSB7109 - Shinji Mukohyama (University of Tokyo): Cosmology with warped flux compactification
2007-04-03 14:00 in SSB7109 - Christian Armendariz-Picon (Syracuse): Do quantum excitations of the inflaton decay?
2007-04-12 13:00 in P8445B - David Rapetti (KIPAC/Stanford): X-ray galaxy clusters as cosmological probes
2007-04-19 13:00 in P8445B - Eric Peng (HIA/DAO, Victoria): Globular cluster systems and the early evolution of galaxies
2007-04-24 14:00 in P8445B - Evgeny Sorkin (UBC): The pinching black strings
2007-05-03 13:00 in P8445B - Tanmay Vachaspati (Case Western Reserve University): Formation of black holes

[ See complete seminar archives | iCal feed ]

Modified by Andrei Frolov <frolov@sfu.ca> on 2023-11-01