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SUMMARY:Gravitational Waves and Black Holes - the Legacy of General Relati
 vity
DTSTART:20181002T171500
DTEND:20181002T181500
DTSTAMP:20260916T191120Z
UID:0682dfcc335d646b8c57bb7aef855aa2e93ef11480fff8c8fcc3662f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Demetrios Christodoulou (ETHZ)\nWhile the Newtonian theo
 ry of gravity is similar to electrostatics\, the field equations in both c
 ases being elliptic\, Einstein's general relativity is more similar to Max
 well's electromagnetic theory\, the field equations in both cases being of
  hyperbolic character. A consequence of this fact is the presence in gener
 al relativity of gravitational waves\, which are analogous to electromagne
 tic waves. Due however to the nonlinear nature of Einstein's equations\, a
  long time elapsed before the theory of gravitational waves reached a sati
 sfactory level of understanding. Another fundamental feature of general re
 lativity is that gravitational collapse leads to the formation of spacetim
 e regions which are inaccessible to observation from infinity\, the black 
 holes. In the last two years\, on several occasions\, wave trains have bee
 n detected generated by binary black holes which inspiral and coalesce. In
  my lecture\, I shall describe the basic concepts\, give an outline of the
 ir historical development\, and discuss how the theory connects to the rec
 ent observations.
LOCATION:CM 1 4 https://plan.epfl.ch/?room==CM%201%204
STATUS:CONFIRMED
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