| EPSRC Reference: |
GR/R53517/01 |
| Title: |
Vortex- Sound interactions: dissipation in the limit of low temperature |
| Principal Investigator: |
Adams, Professor CS |
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| Department: |
Physics |
| Organisation: |
Durham, University of |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 2001 |
Ends: |
31 March 2005 |
Value (£): |
221,029
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| EPSRC Research Topic Classifications: |
| Cold Atomic Species |
Quantum Fluids & Solids |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The dilute Bose-Einstein condensate provides a model system for studying key issues relating to quantum fluids. One key issue involves the interactions between vortices and sound, and their role in the decay of turbulence and the equilibrium properties of quantum fluids at finite temperature. The aim of the proposal is to make a comprehensive study of vortex-sound interactions using the Gross-Pitaevskii model. This approach compliments other theoretical descriptions of quantum fluids, such as the vortex filament model, due to its ability to explicitly describe processes such as vortex formation and vortex reconnections. W e aim to provide a complete description of sound emission due to vortex reconnections and vortex motion, and the absorption and scattering of sound by vortex structures. This description will be applied to improve the current understanding of complex phenomena such as the decay of superfluid turbulence and the conversion of vortex energy into heat in the context of superfluid liquid helium and dilute atomic condensates.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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