2015/04/23 by Sunayana Dutta, Apurba Barman, Anat Siddharth +2
Computer Science · Physics and Astronomy · #Bose–Hubbard model #Boson #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Double-well potential #Dynamics (music) #Hubbard model #Physics #Population #Quantum Information and Cryptography #Quantum mechanics #Quantum tunnelling #Quantum, superfluid, helium dynamics #Statistical physics #Superconductivity #cond-mat.quant-gas
paper · pdf · doi:10.1140/epjb/e2015-60244-9
published as Eur. Phys. J. B 88, 139 (2015) · To appear in Eur. Phys. J. B
arxiv created 2015/04/23 · openalex publication_date 2015/05/29 · arxiv updated 2016/05/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The quantum dynamics of a few bosons in a double well potential is studied using a Bose Hubbard model. We consider both signs for the on-site interparticle interaction and also investigated the situations where they are large and small. Interesting distinctive features are noted for the tunneling oscillations of these bosons corresponding to the above scenarios. Further, the sensitivity of the particle dynamics to the initial conditions has been studied. It is found that corresponding to an odd number of particles, such as three (or five), an initial condition of having unequal number of particles in the wells has interesting consequences, which is most discernible when the population difference between the wells is unity.