Journal
NATURE COMMUNICATIONS
Volume 10, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-019-10796-8
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Funding
- Spanish Ministry MINECO [FIS2016-79508-P, SEV-2015-0522]
- European Social Fund
- Fundacio Cellex
- Generalitat de Catalunya (AGAUR Grant) [2017 SGR 1341]
- Generalitat de Catalunya (CERCA/Program)
- ERC AdG OSYRIS
- EU FETPRO QUIC
- National Science Centre, PolandSymfonia [2016/20/W/ST4/00314]
- ICFOstepstone-PhD Programme for EarlyStage Researchers in Photonics - Marie Sklodowska-Curie Co-funding programmes of the European Commission [GA665884]
- Juan de la Cierva fellowship [IJCI-2017-33180]
- Ramon y Cajal program [RYC-2016-20066]
- MINECO [FIS2015-70856-P]
- CAM/FEDER [S2018/TCS-4342]
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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.
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