February 21, 2017
4:00PM - 5:00PM
PRB Smith Seminar Room
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2017-02-21 17:00:00
2017-02-21 18:00:00
Physics Colloquium: "Quantum Black Holes in the Sky" Niayesh Afshordi (Perimeter Institute)
In classical General Relativity (GR), an observer falling into an astrophysical black hole is not expected to experience anything dramatic as she crosses the event horizon. However, tentative resolutions to problems in quantum gravity, such as the cosmological constant problem or the black hole information paradox, invoke significant departures from classicality in the vicinity of the horizon. I outline some of my favorite theoretical arguments for these departures (including those out of OSU). I will then present tentative observational evidence for near-horizon violations of GR which consists of cosmic acceleration, ultra high energy neutrinos, and echoes in gravitational waves from black hole mergers.
PRB Smith Seminar Room
OSU ASC Drupal 8
ascwebservices@osu.edu
America/New_York
public
Date Range
Add to Calendar
2017-02-21 16:00:00
2017-02-21 17:00:00
Physics Colloquium: "Quantum Black Holes in the Sky" Niayesh Afshordi (Perimeter Institute)
In classical General Relativity (GR), an observer falling into an astrophysical black hole is not expected to experience anything dramatic as she crosses the event horizon. However, tentative resolutions to problems in quantum gravity, such as the cosmological constant problem or the black hole information paradox, invoke significant departures from classicality in the vicinity of the horizon. I outline some of my favorite theoretical arguments for these departures (including those out of OSU). I will then present tentative observational evidence for near-horizon violations of GR which consists of cosmic acceleration, ultra high energy neutrinos, and echoes in gravitational waves from black hole mergers.
PRB Smith Seminar Room
Center for Cosmology and AstroParticle Physics (CCAPP)
ccapp@osu.edu
America/New_York
public
In classical General Relativity (GR), an observer falling into an astrophysical black hole is not expected to experience anything dramatic as she crosses the event horizon. However, tentative resolutions to problems in quantum gravity, such as the cosmological constant problem or the black hole information paradox, invoke significant departures from classicality in the vicinity of the horizon. I outline some of my favorite theoretical arguments for these departures (including those out of OSU). I will then present tentative observational evidence for near-horizon violations of GR which consists of cosmic acceleration, ultra high energy neutrinos, and echoes in gravitational waves from black hole mergers.
