| Full text | |
| Author(s): |
Total Authors: 5
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| Affiliation: | [1] Presidency Univ, Dept Phys, 86-1 Coll St, Kolkata 700073 - India
[2] Univ Sao Paulo, Inst Fis, BR-05508090 Sao Paulo - Brazil
[3] Abdus Salam Int Ctr Theoret Phys, I-34100 Trieste - Italy
[4] Indian Inst Technol Kanpur, Dept Phys, Kanpur 208016, Uttar Pradesh - India
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS; v. 52, n. 21 NOV 14 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
The relaxation process of a few strongly interacting bosons in a triple well optical lattice is studied from the first principle using the multiconfigurational time-dependent Hartree method for bosons. We report the contrasting response of the system under two independent quench processes: an interaction quench and a lattice depth quench. We analyze the evolution of the reduced one-body density matrix, two-body density and the Shannon information entropy for a wide range of lattice depth and interaction strength parameters. For the strong interaction quench, we observe a very fast relaxation to the steady state. In contrast, for the lattice depth quench, we observe collapse-revival dynamics in all the key measures. We also provide the best fitting formulas for relaxation and revival time which follow power law decay. (AU) | |
| FAPESP's process: | 16/19622-0 - Quench dynamics of interacting bosons in 1D optical lattice |
| Grantee: | Arnaldo Gammal |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - International |