An electric-field-assisted magnetic trap for cold molecular evaporative cooling: Toward molecular Bose–Einstein condensation.
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| Title: | An electric-field-assisted magnetic trap for cold molecular evaporative cooling: Toward molecular Bose–Einstein condensation. |
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| Authors: | Zhu, He1 (AUTHOR), Bao, Zheng-Bin1 (AUTHOR), Shao, Xu-Ping1 (AUTHOR) xuping1115@ntu.edu.cn, Huang, Yun-Xia1 (AUTHOR), Yang, Xiao-Hua1 (AUTHOR) xhyang@ntu.edu.cn |
| Source: | International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics. 3/30/2025, Vol. 39 Issue 8, p1-7. 7p. |
| Subjects: | Quantum theory, Ultracold molecules, Magnetic traps, Diatomic molecules, Molecular dynamics, Molecular interactions |
| Abstract: | Ultracold molecules provide fundamental new insights into molecular interaction dynamics in the quantum regime and represent a new platform for chemical physics where quantum behaviors play a dominant role in molecular interaction and dynamics. An electric-field-assisted magnetic trap for trapping and further evaporative cooling of cold molecules to ultracold regime is proposed utilizing the perturbation of the hyperfine levels in a mixed field, and the depth of the trap can be tuned by adjusting the assisted electric field rapidly. Thus, the evaporative cooling of 1 2 7 I 7 9 Br molecules in the | F = 4 , M F = − 4 〉 state of the rovibronic ground state is simulated. It shows that IBr molecules would be cooled from 26 μ K to 556 nK within 598.9 ms and eventually we would obtain a number of 4. 2 7 × 1 0 4 molecules in a volume of 3. 2 7 × 1 0 − 7 cm3 with the number density of 1. 3 0 × 1 0 1 2 cm − 3 . The Bose–Einstein condensation of the alkali diatomic molecules would probably be realized in the proposed trap if the present experimentally available samples are loaded. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 183486023 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: An electric-field-assisted magnetic trap for cold molecular evaporative cooling: Toward molecular Bose–Einstein condensation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhu%2C+He%22">Zhu, He</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bao%2C+Zheng-Bin%22">Bao, Zheng-Bin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shao%2C+Xu-Ping%22">Shao, Xu-Ping</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xuping1115@ntu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Yun-Xia%22">Huang, Yun-Xia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Xiao-Hua%22">Yang, Xiao-Hua</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xhyang@ntu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Modern+Physics+B%3A+Condensed+Matter+Physics%3B+Statistical+Physics%3B+Applied+Physics%22">International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics</searchLink>. 3/30/2025, Vol. 39 Issue 8, p1-7. 7p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Quantum+theory%22">Quantum theory</searchLink><br /><searchLink fieldCode="DE" term="%22Ultracold+molecules%22">Ultracold molecules</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+traps%22">Magnetic traps</searchLink><br /><searchLink fieldCode="DE" term="%22Diatomic+molecules%22">Diatomic molecules</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+dynamics%22">Molecular dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+interactions%22">Molecular interactions</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Ultracold molecules provide fundamental new insights into molecular interaction dynamics in the quantum regime and represent a new platform for chemical physics where quantum behaviors play a dominant role in molecular interaction and dynamics. An electric-field-assisted magnetic trap for trapping and further evaporative cooling of cold molecules to ultracold regime is proposed utilizing the perturbation of the hyperfine levels in a mixed field, and the depth of the trap can be tuned by adjusting the assisted electric field rapidly. Thus, the evaporative cooling of 1 2 7 I 7 9 Br molecules in the | F = 4 , M F = − 4 〉 state of the rovibronic ground state is simulated. It shows that IBr molecules would be cooled from 26 μ K to 556 nK within 598.9 ms and eventually we would obtain a number of 4. 2 7 × 1 0 4 molecules in a volume of 3. 2 7 × 1 0 − 7 cm3 with the number density of 1. 3 0 × 1 0 1 2 cm − 3 . The Bose–Einstein condensation of the alkali diatomic molecules would probably be realized in the proposed trap if the present experimentally available samples are loaded. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1142/S0217979225500638 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 1 Subjects: – SubjectFull: Quantum theory Type: general – SubjectFull: Ultracold molecules Type: general – SubjectFull: Magnetic traps Type: general – SubjectFull: Diatomic molecules Type: general – SubjectFull: Molecular dynamics Type: general – SubjectFull: Molecular interactions Type: general Titles: – TitleFull: An electric-field-assisted magnetic trap for cold molecular evaporative cooling: Toward molecular Bose–Einstein condensation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhu, He – PersonEntity: Name: NameFull: Bao, Zheng-Bin – PersonEntity: Name: NameFull: Shao, Xu-Ping – PersonEntity: Name: NameFull: Huang, Yun-Xia – PersonEntity: Name: NameFull: Yang, Xiao-Hua IsPartOfRelationships: – BibEntity: Dates: – D: 30 M: 03 Text: 3/30/2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 02179792 Numbering: – Type: volume Value: 39 – Type: issue Value: 8 Titles: – TitleFull: International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics Type: main |
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