Scientific Activities
Seminars
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Seminar of Center for Theoretical Physics: | |
| Title | Tkachenko mode from a field-theoretical perspective |
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| Speaker | Prof. Dam Thanh Son |
| Affiliation | University of Chicago |
| Date | Monday, 18-07-2022 |
| Time | 10:00 AM |
| Location | Meeting Hall (8th floor), 2H building, 18 Hoang Quoc Viet, Hanoi |
| 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. |
| Host person | Trần Minh Tiến |