Bose-Einstein condensates of microwave-shielded polar molecules
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916281885655040 |
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| author | Jin, Wei-Jian Deng, Fulin Yi, Su Shi, Tao |
| author_facet | Jin, Wei-Jian Deng, Fulin Yi, Su Shi, Tao |
| contents | We investigate the ground-state properties of the ultracold gases of bosonic microwave-shielded polar molecules. To account for the large shielding core of the inter-molecular potential, we adopt a variational ansatz incorporating the Jastrow correlation factor. We show that the system is always stable and supports a self-bound gas phase and an expanding gas phase. We also calculate the condensate fraction which is significantly reduced when the size of the shielding core of the two-body potential becomes comparable to the inter-molecular distance. Our studies distinguish the molecular condensates from the atomic ones and invalidate the application of the Gross-Pitaevskii equation to the microwave-shielded molecular gases. Our work paves the way for studying the Bose-Einstein condensations of ultracold gases of microwave-shielded polar molecules. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_06412 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Bose-Einstein condensates of microwave-shielded polar molecules Jin, Wei-Jian Deng, Fulin Yi, Su Shi, Tao Quantum Gases We investigate the ground-state properties of the ultracold gases of bosonic microwave-shielded polar molecules. To account for the large shielding core of the inter-molecular potential, we adopt a variational ansatz incorporating the Jastrow correlation factor. We show that the system is always stable and supports a self-bound gas phase and an expanding gas phase. We also calculate the condensate fraction which is significantly reduced when the size of the shielding core of the two-body potential becomes comparable to the inter-molecular distance. Our studies distinguish the molecular condensates from the atomic ones and invalidate the application of the Gross-Pitaevskii equation to the microwave-shielded molecular gases. Our work paves the way for studying the Bose-Einstein condensations of ultracold gases of microwave-shielded polar molecules. |
| title | Bose-Einstein condensates of microwave-shielded polar molecules |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2406.06412 |