Abstract:
:The dual role played by symmetry in many-body physics manifests itself through two fundamental mechanisms: spontaneous symmetry breaking and topological symmetry protection. These two concepts, ubiquitous in both condensed matter and high energy physics, have been applied successfully in the last decades to unravel a plethora of complex phenomena. Their interplay, however, remains largely unexplored. Here we report how, in the presence of strong correlations, symmetry protection emerges from a set of configurations enforced by another broken symmetry. This mechanism spawns different intertwined topological phases, where topological properties coexist with long-range order. Such a singular interplay gives rise to interesting static and dynamical effects, including interaction-induced topological phase transitions constrained by symmetry breaking, as well as a self-adjusted fractional pumping. This work paves the way for further exploration of exotic topological features in strongly-correlated quantum systems.
journal_name
Nat Communjournal_title
Nature communicationsauthors
González-Cuadra D,Bermudez A,Grzybowski PR,Lewenstein M,Dauphin Adoi
10.1038/s41467-019-10796-8subject
Has Abstractpub_date
2019-06-19 00:00:00pages
2694issue
1issn
2041-1723pii
10.1038/s41467-019-10796-8journal_volume
10pub_type
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