Activities

Seminars
Seminar on Theoretical and Computational Physics:
 Title  Tkachenko mode from a fieldtheoretical perspective


Speaker  Prof. Dam Thanh Son


Affiliation  University of Chicago


Date  Monday, 18072022


Time  10:00 AM


Location  Meeting Hall (8th floor), 2H building, 18 Hoang Quoc Viet, Hanoi


Abstract  A rotating twodimensional BoseEinstein 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 fieldtheoretical approach based on duality and find the decay rate of the mode.


Host person  Trần Minh Tiến


