Creation mechanism of quantum accelerator modes
We investigate the creation mechanism of quantum accelerator modes which are attributed to the existence of the stability islands in an underlying pseudoclassical phase space of the quantum delta-kicked accelerator. Quantum accelerator modes can be created by exposing a Bose-Einstein condensate to a...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/52497 |
| _version_ | 1826202341066407936 |
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| author | Summy, G. S. Ramareddy, V. Behinaein, G. Ahmadi, Peyman |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Summy, G. S. Ramareddy, V. Behinaein, G. Ahmadi, Peyman |
| author_sort | Summy, G. S. |
| collection | MIT |
| description | We investigate the creation mechanism of quantum accelerator modes which are attributed to the existence of the stability islands in an underlying pseudoclassical phase space of the quantum delta-kicked accelerator. Quantum accelerator modes can be created by exposing a Bose-Einstein condensate to a pulsed standing light wave. We show that constructive interference between momentum states populated by the pulsed light determines the stability island’s existence in the underlying pseudoclassical phase space. We generalize this interference model to incorporate higher-order accelerator modes, showing that they are generated if the rephasing occurs after multiple pulses. The model is extended to predict the momentum structure of the quantum accelerator modes close to higher-order quantum resonances. These predictions are in good agreement with our experimental observations. |
| first_indexed | 2024-09-23T12:05:55Z |
| format | Article |
| id | mit-1721.1/52497 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:05:55Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/524972022-09-28T00:06:16Z Creation mechanism of quantum accelerator modes Summy, G. S. Ramareddy, V. Behinaein, G. Ahmadi, Peyman Massachusetts Institute of Technology. Department of Physics Ahmadi, Peyman Ahmadi, Peyman We investigate the creation mechanism of quantum accelerator modes which are attributed to the existence of the stability islands in an underlying pseudoclassical phase space of the quantum delta-kicked accelerator. Quantum accelerator modes can be created by exposing a Bose-Einstein condensate to a pulsed standing light wave. We show that constructive interference between momentum states populated by the pulsed light determines the stability island’s existence in the underlying pseudoclassical phase space. We generalize this interference model to incorporate higher-order accelerator modes, showing that they are generated if the rephasing occurs after multiple pulses. The model is extended to predict the momentum structure of the quantum accelerator modes close to higher-order quantum resonances. These predictions are in good agreement with our experimental observations. 2010-03-11T15:32:17Z 2010-03-11T15:32:17Z 2009-11 2009-06 Article http://purl.org/eprint/type/JournalArticle 1094-1622 1050-2947 http://hdl.handle.net/1721.1/52497 Ahmadi, P. et al. “Creation mechanism of quantum accelerator modes.” Physical Review A 80.5 (2009): 053418. © 2009 The American Physical Society en_US http://dx.doi.org/10.1103/PhysRevA.80.053418 Physical Review A Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Summy, G. S. Ramareddy, V. Behinaein, G. Ahmadi, Peyman Creation mechanism of quantum accelerator modes |
| title | Creation mechanism of quantum accelerator modes |
| title_full | Creation mechanism of quantum accelerator modes |
| title_fullStr | Creation mechanism of quantum accelerator modes |
| title_full_unstemmed | Creation mechanism of quantum accelerator modes |
| title_short | Creation mechanism of quantum accelerator modes |
| title_sort | creation mechanism of quantum accelerator modes |
| url | http://hdl.handle.net/1721.1/52497 |
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