Abstract | ||
---|---|---|
We examine the spectral structure and many-body dynamics of two and three repulsively interacting bosons trapped in a one-dimensional double-well, for variable barrier height, inter-particle interaction strength, and initial conditions. By exact diagonalization of the many-particle Hamiltonian, we specifically explore the dynamical behavior of the particles launched either at the single-particle ground state or saddle-point energy, in a time-independent potential. We complement these results by a characterization of the cross-over from diabatic to quasi-adiabatic evolution under finite-time switching of the potential barrier, via the associated time evolution of a single particle's von Neumann entropy. This is achieved with the help of the multiconfigurational time-dependent Hartree method for indistinguishable particles (MCTDH-X)-which also allows us to extrapolate our results for increasing particle numbers. |
Year | DOI | Venue |
---|---|---|
2020 | 10.3390/e22040382 | ENTROPY |
Keywords | DocType | Volume |
Bosonic systems,ultracold atomic gases,tunneling and Josephson effect,Bose-Einstein condensates in periodic potentials | Journal | 22 |
Issue | ISSN | Citations |
4 | 1099-4300 | 0 |
PageRank | References | Authors |
0.34 | 0 | 5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Schäfer Frank | 1 | 0 | 0.34 |
Bastarrachea-Magnani Miguel A. | 2 | 0 | 0.34 |
Lode Axel U. J. | 3 | 0 | 0.34 |
de Parny Laurent de Forges | 4 | 0 | 0.34 |
Buchleitner Andreas | 5 | 0 | 0.34 |