2002/10/17 by Luigi Giacomazzi, Flavio Toigo, Francesco Ancilotto · 1 citation
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat
paper · pdf · doi:10.1103/physrevb.67.104501
q 1 tex file + 9 Ps figures
arxiv created 2002/10/17 · openalex publication_date 2003/03/03 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present numerical results obtained from time-dependent density functional calculations of the dynamics of liquid4He in different environments characterized by geometrical confinement. The time-dependent density profile and velocity field of 4He are obtained by means of direct numerical integration of the nonlinear Schr"odinger equation associated with a phenomenological energy functional which describes accurately both the static and dynamic properties of bulk liquid 4He. Our implementation allows for a general solution in three dimensions (i.e., no symmetries are assumed in order to simplify the calculations). We apply our method to study the real-time dynamics of pure and alkali-doped clusters, of a monolayer film on a weakly attractive surface and a nanodroplet spreading on a solid surface.