“Cherenkov radiation” of a sound in a Bose condensed gas
In terms of linearized Gross–Pitaevskii equation we have studied the process of sound emission arises from a supersonic particle motion in a Bose condensed gas. By analogy with the method used for description of Vavilov–Cherenkov phenomenon, we have found a friction work created by the particle gene...
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| Format: | Journal article |
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Elsevier
2001
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| _version_ | 1797083491585753088 |
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| author | Kovrizhin, D Maksimov, L |
| author_facet | Kovrizhin, D Maksimov, L |
| author_sort | Kovrizhin, D |
| collection | OXFORD |
| description | In terms of linearized Gross–Pitaevskii equation we have studied the process of sound emission arises from a supersonic particle motion in a Bose condensed gas. By analogy with the method used for description of Vavilov–Cherenkov phenomenon, we have found a friction work created by the particle generated condensate polarization. For comparison we have found radiation intensity of excitations. Both methods gives the same result. |
| first_indexed | 2024-03-07T01:42:23Z |
| format | Journal article |
| id | oxford-uuid:97532a63-9bce-4db7-9f55-be762938a608 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T01:42:23Z |
| publishDate | 2001 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oxford-uuid:97532a63-9bce-4db7-9f55-be762938a6082022-03-26T23:58:37Z“Cherenkov radiation” of a sound in a Bose condensed gasJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:97532a63-9bce-4db7-9f55-be762938a608Symplectic Elements at OxfordElsevier2001Kovrizhin, DMaksimov, LIn terms of linearized Gross–Pitaevskii equation we have studied the process of sound emission arises from a supersonic particle motion in a Bose condensed gas. By analogy with the method used for description of Vavilov–Cherenkov phenomenon, we have found a friction work created by the particle generated condensate polarization. For comparison we have found radiation intensity of excitations. Both methods gives the same result. |
| spellingShingle | Kovrizhin, D Maksimov, L “Cherenkov radiation” of a sound in a Bose condensed gas |
| title | “Cherenkov radiation” of a sound in a Bose condensed gas |
| title_full | “Cherenkov radiation” of a sound in a Bose condensed gas |
| title_fullStr | “Cherenkov radiation” of a sound in a Bose condensed gas |
| title_full_unstemmed | “Cherenkov radiation” of a sound in a Bose condensed gas |
| title_short | “Cherenkov radiation” of a sound in a Bose condensed gas |
| title_sort | cherenkov radiation of a sound in a bose condensed gas |
| work_keys_str_mv | AT kovrizhind cherenkovradiationofasoundinabosecondensedgas AT maksimovl cherenkovradiationofasoundinabosecondensedgas |