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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-2352
DTSTART:20120907T203000Z
DURATION:PT1H0M0S
DTSTAMP:20240329T023627Z
LAST-MODIFIED:20120902T172840Z
LOCATION:2241 Chamberlin Hall (coffee at 4:30 pm)
SUMMARY:Pushing Einstein’s Boundaries: Gravitational Approaches to t
he Challenges of Modern Cosmology\, Physics Department Colloquium\, Ma
rk Trodden\, Center for Particle Cosmology\, University of Pennsylvani
a
DESCRIPTION:Einstein's general theory of relativity (GR) is one of the
most successful and well-tested physical theories ever developed. Nev
ertheless\, modern cosmology poses a range of questions\, from the sma
llest scales to the largest\, that remain currently unresolved by GR c
oupled to the known energy and matter contents of the universe. This r
aises the logical possibility that GR may require modification on the
relevant scales.
\n
\nI will discuss the status of some modern
approaches to alter GR to address cosmological problems. We shall see
that these efforts are extremely theoretically constrained\, leaving
very few currently viable approaches. Meanwhile\, observationally\, up
coming missions promise to constrain allowed departures from GR in exc
iting new ways\, complementary to traditional tests within the solar s
ystem.
URL:https://www.physics.wisc.edu/events/?id=2352
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