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Doublon relaxation in the Bose-Hubbard model
- Source :
- Phys. Rev. Lett. 108, 085302 (2012)
- Publication Year :
- 2011
-
Abstract
- Decay of a high-energy double occupancy state, doublon, in a narrow-band lattice requires creation of a coherent many-particle excitation. This leads to an exponentially long relaxation time of such a state. We show that, if the average occupation number is sufficiently small, the corresponding exponent may be evaluated exactly. To this end we develop the quasiclassical approach to calculation of the high-order tree-level decay amplitudes.<br />Comment: 4 pages, 1 figure
- Subjects :
- Condensed Matter - Quantum Gases
High Energy Physics - Theory
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 108, 085302 (2012)
- Publication Type :
- Report
- Accession number :
- edsarx.1104.5210
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.108.085302