Realization of a density-dependent Peierls phase in a synthetic, spin-orbit coupled Rydberg system
| Autor: | Lienhard, Vincent, Scholl, Pascal, Weber, Sebastian, Barredo, Daniel, de Léséleuc, Sylvain, Bai, Rukmani, Lang, Nicolai, Fleischhauer, Michael, Büchler, Hans Peter, Lahaye, Thierry, Browaeys, Antoine |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Phys. Rev. X 10, 021031 (2020) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevX.10.021031 |
| Popis: | We experimentally realize a Peierls phase in the hopping amplitude of excitations carried by Rydberg atoms, and observe the resulting characteristic chiral motion in a minimal setup of three sites. Our demonstration relies on the intrinsic spin-orbit coupling of the dipolar exchange interaction combined with time-reversal symmetry breaking by a homogeneous external magnetic field. Remarkably, the phase of the hopping amplitude between two sites strongly depends on the occupancy of the third site, thus leading to a correlated hopping associated to a density-dependent Peierls phase. We experimentally observe this density-dependent hopping and show that the excitations behave as anyonic particles with a non-trivial phase under exchange. Finally, we confirm the dependence of the Peierls phase on the geometrical arrangement of the Rydberg atoms. Comment: 10 pages, 7 figures |
| Databáze: | arXiv |
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