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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.04134 |
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| _version_ | 1866910932274249728 |
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| author | Shandilya, Sankalp Verma, Gunjan Bhardwaj, Kavish Ram, S. P. Tiwari, V. B. Mishra, S. R. |
| author_facet | Shandilya, Sankalp Verma, Gunjan Bhardwaj, Kavish Ram, S. P. Tiwari, V. B. Mishra, S. R. |
| contents | Here, we present our studies on intra-trap dynamics of an optical dipole trap (ODT) loaded from a Magneto-optical trap (MOT) of $^{87}$Rb atoms. A spatio-temporal Monte Carlo (MC) simulation approach has been employed in conjunction with the semi-classical theory based calculations for estimation of various intra-trap two-body loss parameters in the ODT. The temporal MC method based on estimated parameters from spatial MC, gives a close estimation of the experimentally observed atom-number evolution in ODT. We also find that, the decay rate of atoms in an ODT is dominated by momentum-transfer elastic collisions in the absence of MOT beams. However, in presence of MOT beams, the radiative escape process is the dominant two-body loss mechanism in the trap, which surpasses the fine-structure changing and hyperfine changing collisional losses by nearly an order of magnitude. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_04134 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spatio-temporal Monte Carlo modeling of loading and decay dynamics in an optical dipole trap Shandilya, Sankalp Verma, Gunjan Bhardwaj, Kavish Ram, S. P. Tiwari, V. B. Mishra, S. R. Atomic Physics Here, we present our studies on intra-trap dynamics of an optical dipole trap (ODT) loaded from a Magneto-optical trap (MOT) of $^{87}$Rb atoms. A spatio-temporal Monte Carlo (MC) simulation approach has been employed in conjunction with the semi-classical theory based calculations for estimation of various intra-trap two-body loss parameters in the ODT. The temporal MC method based on estimated parameters from spatial MC, gives a close estimation of the experimentally observed atom-number evolution in ODT. We also find that, the decay rate of atoms in an ODT is dominated by momentum-transfer elastic collisions in the absence of MOT beams. However, in presence of MOT beams, the radiative escape process is the dominant two-body loss mechanism in the trap, which surpasses the fine-structure changing and hyperfine changing collisional losses by nearly an order of magnitude. |
| title | Spatio-temporal Monte Carlo modeling of loading and decay dynamics in an optical dipole trap |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2505.04134 |