Programme

P.30 -- Poster, VCTP-47

Date: Tuesday, 2 August 2022

Time: 08:30 - 10:00

The interaction between Bose – Einstein Condensate fluid and fixed potential wall

Hieu B. Le (1), Thang N. Tran (1), Tuan L.A. Nguyen (1), Hanh T. Tran (1), Thu U. Pham (1), Vinh N. T. Pham (1, 2)

(1) Department of Physics, Ho Chi Minh City University of Education, Ho Chi Minh, Vietnam (2) International Cooperation Office, Ho Chi Minh City University of Education, Ho Chi Minh, Vietnam.

In this study, the imaginary-time, split-operator methods combining with Fast Fourier Transform are used to numerically simulate the Bose – Einstein Condensate (BEC) dynamics by solving Gross – Pitaevskii equation. the BEC is considered in harmonic trap as the density profile fit with Thomas – Fermi distribution. We take into account the sliding effect of two BEC components in opposite directions. Thus, we are alble to investigate the pattern of Kelvin – Helmholtz instability at the boundary surface between two components. As the two BEC components slide on each other with the same direction and velocity, they are considered to interact with a mountain-like Gaussian potial wall. This effect procedues the Lee wave phenomena.

Presenter: Pham Nguyen Thanh Vinh