Bulletin of the American Physical Society
APS April Meeting 2016
Volume 61, Number 6
Saturday–Tuesday, April 16–19, 2016; Salt Lake City, Utah
Session H5: Black Holes - The Schwarzschild Solution and BeyondInvited Undergraduate
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Sponsoring Units: GGR Chair: Thomas W. Baumgarte, Bowdoin College Room: Ballroom D |
Sunday, April 17, 2016 8:30AM - 9:06AM |
H5.00001: Schwarzschild Solution: A Historical Perspective Invited Speaker: Marcia Bartusiak While eighteenth-century Newtonians had imagined a precursor to the black hole, the modern version has its roots in the first full solution to Einstein's equations of general relativity, derived by the German astronomer Karl Schwarzschild on a World War I battlefront just weeks after Einstein introduced his completed theory in November 1915. This talk will demonstrate how Schwarzschild's solution is linked to the black hole and how it took more than half a century for the physics community to accept that such a bizarre celestial object could exist in the universe. [Preview Abstract] |
Sunday, April 17, 2016 9:06AM - 9:42AM |
H5.00002: Dark Candles of the Universe: Black Hole Observations Invited Speaker: Aycin Aykutalp In 1916, when Karl Schwarzschild solved the Einstein field equations of general relativity for a spherically symmetric, non-rotating mass no one anticipated the impact black holes would have on astrophysics. I will review the main formation channels for black hole seeds and their evolution through cosmic time. In this, emphasis will be placed on the observational diagnostics of astrophysical black holes and their role on the assembly of galaxy formation and evolution. I then review how these observations put constrain on the seed black hole formation theories. Finally, I present an outlook for how future observations can shed light on our understanding of black holes. [Preview Abstract] |
Sunday, April 17, 2016 9:42AM - 10:18AM |
H5.00003: Quantum black holes in loop quantum gravity Invited Speaker: Javier Olmedo In this contribution I will comment on the last advances in relation to the loop quantization of spherically symmetric spacetimes. I will briefly summarize the vacuum case, where the physical states and observables are known explicitly. The main physical consequences are i) a genuine discretization of the geometry and ii) singularity resolution. Afterwards I will consider the coupling with a thin spherically symmetric null-dust shell. This is one of the simplest collapse scenarios with nontrivial dynamics. I will provide a representation for the scalar constraint that is consistent with the Dirac quantization approach, and the quantum observables of the model. Finally, I comment on the possible physical consequences of this model. [Preview Abstract] |
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