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Targeted Energy Transfer in Bose-Einstein Condensates
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics. Linköping University, The Institute of Technology.
2013 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Targeted Energy Transfer is a resonance phenomenon in coupled anharmonic oscillators. In this thesis we investigate if the concept of Targeted Energy Transfer is applicable to Bose-Einsteain condensates in optical lattices. The model used to describe Bose-Einstein condensates in optical lattices is based on the Gross-Pitaevskii equation. Targeted Energy Transfer in these systems would correspond to energy being transferred from one lattice site to another.

We also try to expand the concept of Targeted Energy Transfer to a system consisting of three sites, where one of the sites are considered a perturbation to the system.

We have concluded that it is possible to achieve Targeted Energy Transfer in a three-site system. The set-up of the system will in some of the cases studied lead to interesting properties, such as more energy being transferred to the acceptor site than what was initially localized on the donor site.

Place, publisher, year, edition, pages
2013. , 60 p.
Keyword [en]
Bose-Einstein condensate, Targeted Energy Transfer, Gross-Pitaevskii equation, resonance, anharmonic oscillators
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-98279ISRN: LITH-IFM-A-EX--13/2835—SEOAI: oai:DiVA.org:liu-98279DiVA: diva2:653946
Subject / course
Theoretical Physics
Supervisors
Examiners
Available from: 2013-10-07 Created: 2013-10-07 Last updated: 2013-10-14Bibliographically approved

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CiteExportLink to record
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