Activities
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Seminars
| Seminar on Theoretical and Computational Physics:
| | Title | Tkachenko mode from a field-theoretical perspective
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| Speaker | Prof. Dam Thanh Son
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| Affiliation | University of Chicago
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| Date | Monday, 18-07-2022
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| Time | 10:00 AM
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| Location | Meeting Hall (8th floor), 2H building, 18 Hoang Quoc Viet, Hanoi
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| Abstract | A rotating two-dimensional Bose-Einstein condensate contains a vortex lattice. The Tkachenko mode is the elastic wave propagating on this vortex lattice. In contrast to the conventional sound waves in a solid, the Tkachenko mode has a quadratic dispersion relation $omega sim q^2$. We rederive this dispersion relation using a field-theoretical approach based on duality and find the decay rate of the mode.
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| Host person | Trần Minh Tiến
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