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SUMMARY:Black Hole Hair - Ruth Gregory (Durham)
DTSTART:20140528T131500Z
DTEND:20140528T141500Z
UID:TALK52193@talks.cam.ac.uk
CONTACT:Dr Joan Camps
DESCRIPTION:Black holes are perhaps the most fascinating objects in Genera
 l Relativity - they have a very simple mathematical description\, characte
 rised by mass\, charge and angular momentum - the lack of larger numbers o
 f parameters being typically summed up by "no hair" theorems. Yet the no h
 air theorems ignore nonperturbative aspects of the field theories used to 
 describe matter. I will discuss how black holes can acquire very spectacul
 ar hair when symmetries of nature are spontaneously broken - in the form o
 f topological defects emanating from the black hole horizon. I will discus
 s how these vacuum defects interact with the black hole\, causing it to bu
 ckle and change in shape. Although the black hole can be bland\, it can ha
 ve rather literal\, and very long hair!
LOCATION:MR2\, Centre for Mathematical Sciences
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