BCS-BEC crossover of the strongly interacting $^6$Li-$^{40}$K mixture
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866912087397105664 |
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| author | Gandolfi, Stefano Curry, Ryan Gezerlis, Alexandros |
| author_facet | Gandolfi, Stefano Curry, Ryan Gezerlis, Alexandros |
| contents | We present Quantum Monte Carlo calculations of the properties of a two-component mass imbalanced Fermi gas, corresponding to the $^6$Li-$^{40}$K mixture. We compute the equation of state of the unpolarized system as a function of the scattering length with particular attention paid to the unitary limit, where the effect of the effective range of the interaction is explored. We have also computed the pair distribution function and the momentum distribution over a range of interaction strengths to provide information about the structure of the system. Finally, we have computed the heavy/light quasiparticle spectrum. Our theoretical predictions, based on Quantum Monte Carlo calculations, can be tested by future experiments with ultracold fermionic gases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_12102 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | BCS-BEC crossover of the strongly interacting $^6$Li-$^{40}$K mixture Gandolfi, Stefano Curry, Ryan Gezerlis, Alexandros Quantum Gases Nuclear Theory We present Quantum Monte Carlo calculations of the properties of a two-component mass imbalanced Fermi gas, corresponding to the $^6$Li-$^{40}$K mixture. We compute the equation of state of the unpolarized system as a function of the scattering length with particular attention paid to the unitary limit, where the effect of the effective range of the interaction is explored. We have also computed the pair distribution function and the momentum distribution over a range of interaction strengths to provide information about the structure of the system. Finally, we have computed the heavy/light quasiparticle spectrum. Our theoretical predictions, based on Quantum Monte Carlo calculations, can be tested by future experiments with ultracold fermionic gases. |
| title | BCS-BEC crossover of the strongly interacting $^6$Li-$^{40}$K mixture |
| topic | Quantum Gases Nuclear Theory |
| url | https://arxiv.org/abs/2407.12102 |