Cooperative effects in dense cold atomic gases including magnetic dipole interactions
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866916242275696640 |
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| author | Bassler, N. S. Varma, I. Proske, M. Windpassinger, P. Schmidt, K. P. Genes, C. |
| author_facet | Bassler, N. S. Varma, I. Proske, M. Windpassinger, P. Schmidt, K. P. Genes, C. |
| contents | We theoretically investigate cooperative effects in cold atomic gases exhibiting both electric and magnetic dipole-dipole interactions, such as occurring for example in clouds of dysprosium atoms. We distinguish between the quantum degenerate case, where we take a many body physics approach and the quantum non-degenerate case, where we use the formalism of open system dynamics. For quantum non-degenerate gases, we illustrate the emergence of tailorable spin models in the high-excitation limit. In the low-excitation limit, we provide analytical and numerical results detailing the effect of magnetic interactions on the directionality of scattered light and characterize sub- and superradiant effects. For quantum degenerate gases, we study the interplay between sub- and superradiance effects and the fermionic or bosonic quantum statistics nature of the ensemble. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2306_11486 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Cooperative effects in dense cold atomic gases including magnetic dipole interactions Bassler, N. S. Varma, I. Proske, M. Windpassinger, P. Schmidt, K. P. Genes, C. Quantum Gases Quantum Physics We theoretically investigate cooperative effects in cold atomic gases exhibiting both electric and magnetic dipole-dipole interactions, such as occurring for example in clouds of dysprosium atoms. We distinguish between the quantum degenerate case, where we take a many body physics approach and the quantum non-degenerate case, where we use the formalism of open system dynamics. For quantum non-degenerate gases, we illustrate the emergence of tailorable spin models in the high-excitation limit. In the low-excitation limit, we provide analytical and numerical results detailing the effect of magnetic interactions on the directionality of scattered light and characterize sub- and superradiant effects. For quantum degenerate gases, we study the interplay between sub- and superradiance effects and the fermionic or bosonic quantum statistics nature of the ensemble. |
| title | Cooperative effects in dense cold atomic gases including magnetic dipole interactions |
| topic | Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2306.11486 |