Anomalous tunneling of phonon excitations between two Bose-Einstein condensates.
We discuss the tunneling of phonon excitations across a potential barrier separating two condensates. It is shown that a strong barrier proves to be transparent for the excitations at low energy epsilon. Moreover, the transmission is reduced with increasing epsilon in contrast to the standard depend...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2003
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| _version_ | 1797082522317750272 |
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| author | Kagan, Y Kovrizhin, D Maksimov, L |
| author_facet | Kagan, Y Kovrizhin, D Maksimov, L |
| author_sort | Kagan, Y |
| collection | OXFORD |
| description | We discuss the tunneling of phonon excitations across a potential barrier separating two condensates. It is shown that a strong barrier proves to be transparent for the excitations at low energy epsilon. Moreover, the transmission is reduced with increasing epsilon in contrast to the standard dependence. This anomalous behavior is due to the existence of a quasiresonance interaction. The origin of this interaction is a result of the formation of a special well determined by the density distribution of the condensate in the vicinity of a high barrier. |
| first_indexed | 2024-03-07T01:29:07Z |
| format | Journal article |
| id | oxford-uuid:92ffdef6-51e1-42af-a4f7-28e6b4f09a93 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:29:07Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:92ffdef6-51e1-42af-a4f7-28e6b4f09a932022-03-26T23:29:22ZAnomalous tunneling of phonon excitations between two Bose-Einstein condensates.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:92ffdef6-51e1-42af-a4f7-28e6b4f09a93EnglishSymplectic Elements at Oxford2003Kagan, YKovrizhin, DMaksimov, LWe discuss the tunneling of phonon excitations across a potential barrier separating two condensates. It is shown that a strong barrier proves to be transparent for the excitations at low energy epsilon. Moreover, the transmission is reduced with increasing epsilon in contrast to the standard dependence. This anomalous behavior is due to the existence of a quasiresonance interaction. The origin of this interaction is a result of the formation of a special well determined by the density distribution of the condensate in the vicinity of a high barrier. |
| spellingShingle | Kagan, Y Kovrizhin, D Maksimov, L Anomalous tunneling of phonon excitations between two Bose-Einstein condensates. |
| title | Anomalous tunneling of phonon excitations between two Bose-Einstein condensates. |
| title_full | Anomalous tunneling of phonon excitations between two Bose-Einstein condensates. |
| title_fullStr | Anomalous tunneling of phonon excitations between two Bose-Einstein condensates. |
| title_full_unstemmed | Anomalous tunneling of phonon excitations between two Bose-Einstein condensates. |
| title_short | Anomalous tunneling of phonon excitations between two Bose-Einstein condensates. |
| title_sort | anomalous tunneling of phonon excitations between two bose einstein condensates |
| work_keys_str_mv | AT kagany anomaloustunnelingofphononexcitationsbetweentwoboseeinsteincondensates AT kovrizhind anomaloustunnelingofphononexcitationsbetweentwoboseeinsteincondensates AT maksimovl anomaloustunnelingofphononexcitationsbetweentwoboseeinsteincondensates |