Controlled flow of excitations in a ring-shaped network of Rydberg atoms
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2022
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| _version_ | 1866909648681959424 |
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| author | Perciavalle, Francesco Rossini, Davide Haug, Tobias Morsch, Oliver Amico, Luigi |
| author_facet | Perciavalle, Francesco Rossini, Davide Haug, Tobias Morsch, Oliver Amico, Luigi |
| contents | Highly excited Rydberg atoms are a powerful platform for quantum simulation and information processing. Here, we propose atomic ring networks to study chiral currents of Rydberg excitations. The currents are controlled by a phase pattern imprinted via a Raman scheme and can persist even in the presence of dephasing. Depending on the interplay between the Rabi coupling of Rydberg states and the dipole-dipole atom interaction, the current shows markedly different features. The excitations propagate with a velocity displaying a characteristic peak in time, reflecting the chiral nature of the current. We find that the time-averaged current in a quench behaves similarly to the ground-state current. This analysis paves the way for the development of new methods to transport information in atomic networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_12490 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Controlled flow of excitations in a ring-shaped network of Rydberg atoms Perciavalle, Francesco Rossini, Davide Haug, Tobias Morsch, Oliver Amico, Luigi Quantum Gases Quantum Physics Highly excited Rydberg atoms are a powerful platform for quantum simulation and information processing. Here, we propose atomic ring networks to study chiral currents of Rydberg excitations. The currents are controlled by a phase pattern imprinted via a Raman scheme and can persist even in the presence of dephasing. Depending on the interplay between the Rabi coupling of Rydberg states and the dipole-dipole atom interaction, the current shows markedly different features. The excitations propagate with a velocity displaying a characteristic peak in time, reflecting the chiral nature of the current. We find that the time-averaged current in a quench behaves similarly to the ground-state current. This analysis paves the way for the development of new methods to transport information in atomic networks. |
| title | Controlled flow of excitations in a ring-shaped network of Rydberg atoms |
| topic | Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2212.12490 |