Colloquia will be hosted online and will start at 4 p.m unless otherwise noted.

For further information, please contact the Physics Department at This email address is being protected from spambots. You need JavaScript enabled to view it..

January 26	TBA TBA
February 2	Tom Hartman, Cornell University Hosted by Ted Jacobson Wormholes and the Information Paradox Wormholes and the Information Paradox Black hole evaporation seems to create entropy in a way that violates quantum mechanics. This is the essence of Hawking's black hole information paradox. I will describe recent progress on this problem, including a new result for the entropy of Hawking radiation that is compatible with unitary quantum mechanics, and discuss the consequences for black holes in quantum gravity. The mechanism is a quantum effect in which virtual wormholes modify the leading-order behavior of highly entangled systems. This is part of a wider set of ideas relating geometry to entanglement. Join Zoom Meeting https://umd.zoom.us/j/97377397525?pwd=ZjBiS1NCa3dLTlV4MDhRUklyZU1pZz09 Meeting ID: 973 7739 7525 Passcode: 89593 +13017158592,,97377397525# US (Washington D.C) +19294362866,,97377397525# US (New York)
February 9	TBA TBA
February 16	TBA TBA
February 23	TBA TBA
March 2	TBA TBA
March 9	TBA TBA
March 23	TBA TBA
March 30	TBA TBA
April 6	TBA TBA
April 13	TBA TBA
April 20	TBA TBA
April 27	TBA TBA