Frontiers in Many-Body Physics of Atoms
- 01:11:10
Description |
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I will review recent developments in AMO systems, with emphasis on how they challenge ingrained concepts in many-body physics. First I will consider quantum optical setups, where the non-equilibrium conditions imposed by a laser drive lead to new types of emergent universal behavior. As a concrete example I will show that exciton-polaritons in semiconductor cavities, though much publicized as Bose condensates, actually form a different and more intriguing liquid. Next I will consider ensembles of ultra-cold atoms, which represent nearly perfect realizations of closed quantum systems. Can quantum correlations imprinted in the state of the system survive the many-body time evolution? I will present new insights on the dynamical phase transition from an ergodic phase in which quantum correlations are lost to a many-body localized state in which they persist indefinitely. The nature of this transition lies at the heart of a basic unsolved question concerning the crossover from quantum to classical behavior in macroscopic systems. Before closing I will present progress in confronting the emerging theory of many-body localization with experimental tests. |
Details |
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Title |
Frontiers in Many-Body Physics of Atoms |
Creator |
University of California, Berkeley. Dept. of Physics |
Published |
Berkeley, CA, University of California, Berkeley, Dept. of Physics, January 26, 2015 |
Full Collection Name |
Physics Colloquia |
Type |
Video |
Format |
Lecture. |
Extent |
1 streaming video file |
Other Physical Details |
digital, sd., col. |
Archive |
Physics Library |
Note |
Recorded at a colloquium held on January 26, 2015, sponsored by the Dept. of Physics, University of California, Berkeley. originally produced as an .mts file in 2015 Speakers: Altman, Ehud. |
Usage Statement |
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Collection |
Physics Colloquia |
Tracks |
colloquia/1-26-15Altmann.mp4 01:11:10 |
Linked Resources |
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