Thermalization Under Generalized Symmetries

          @misc{ scivideos_oai:cds.cern.ch:3025680,
            doi = {},
            url = {https://videos.cern.ch/record/3025680},
            author = {},
            keywords = {},
            language = {en},
            title = {Thermalization Under Generalized Symmetries},
            publisher = {},
            year = {2026},
            month = {may},
            note = {oai:cds.cern.ch:3025680 see, \url{https://scivideos.org/cern-cds/3025680}}
          }
          

Abstract

In the last few years, many instances of local Hamiltonians with abnormal thermalization properties have been found. These include models with Hilbert space fragmentation and quantum many-body scars. In an ideal scenario, we would like to characterize the conditions under which abnormal thermalization can occur and, if it does, predict its characteristics. In this talk, I will demonstrate how generalized symmetries can lead to an exponential increase in the number of disconnected sectors of the Hilbert space, which has been taken as evidence of ergodicity breaking. I will argue that, in certain instances, this should not be regarded as ergodicity-breaking, namely when it can be fully explained within the framework of generalized symmetries, including non-invertible symmetries, that have been largely unexplored in this context. Notable examples include the PXP model and gauge theories, particularly Quantum Link Models in higher dimensions.

00:00:00 Slide 1
00:00:46 Slide 2
00:01:48 Slide 3
00:02:37 Slide 4
00:03:52 Slide 5
00:04:36 Slide 6
00:05:12 Slide 7
00:06:40 Slide 8
00:07:31 Slide 9
00:08:48 Slide 10
00:11:19 Slide 11
00:12:37 Slide 12
00:15:11 Slide 13
00:16:35 Slide 14
00:17:48 Slide 15
00:19:37 Slide 16
00:21:13 Slide 17
00:22:50 Slide 18
00:24:30 Slide 19
00:26:09 Slide 20
00:26:52 Slide 21
00:27:36 Slide 22
00:29:20 Slide 23
00:34:15 Slide 24
00:34:50 Slide 25
00:36:57 Slide 26
00:37:48 Slide 27
00:38:51 Slide 28
00:41:13 Slide 29
00:42:08 Slide 30
00:42:36 Slide 31
00:44:11 Slide 32
00:45:43 Slide 33
00:46:59 Slide 34
00:51:32 Slide 35
00:52:49 Slide 36
00:54:21 Slide 37
00:55:29 Slide 38
00:56:11 Slide 39