Canceled - Physics Colloquium

Date
Tue, Jan 29, 2019 4:00 pm - 5:00 pm
Location
Physical Sciences Complex Lobby

Description

Speaker: Ted Jacobson, University of Maryland

Title: Hawking radiation in a laboratory!?

Abstract: Einstein's theory of gravity opened Pandora's box of warped spacetime in 1915, and out popped the black hole, confusing and delighting (or maddening) physicists ever since. In the early 1970's it was discovered that black holes have entropy and temperature, and decay by Hawking radiation, like radioactive whirlpools in the spacetime river, raising two persistent puzzles: the black hole information paradox and the transPlanckian problem. To bring some of this down to earth, Unruh in 1980 conceived of a black hole analog, formed by a flowing, quantum fluid, which might one day be studied in a laboratory. That day has now come...probably. In the last few years, Jeff Steinhauer has carried out a number of experiments on Bose-Einstein condensates of rubidium atoms, configured to emulate a black hole, and reported on the observation of thermal phononic Hawking radiation and its quantum entanglement with phonons inside the sonic black hole. In this colloquium I will describe these ideas and experiments, as well as simulations that have been carried out in order to help understand what has so far been observed.

Upcoming Events

10 Sep
Physics Colloquium
Date Tue, Sep 10, 2019 4:00 pm - 5:00 pm
17 Sep
Physics Colloquium
Date Tue, Sep 17, 2019 4:00 pm - 5:00 pm
23 Sep
EPT Seminar
Date Mon, Sep 23, 2019 3:00 pm - 4:30 pm
24 Sep
Physics Colloquium
Date Tue, Sep 24, 2019 4:00 pm - 5:00 pm
1 Oct
Physics Colloquium
Date Tue, Oct 1, 2019 4:00 pm - 5:00 pm