Projects per year
Abstract
The decay of a high-energy double occupancy state, doublon, in a narrow-band lattice requires the 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.
Original language | English |
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Pages (from-to) | 085302 |
Number of pages | 1 |
Journal | Physical Review Letters |
Volume | 108 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1 Feb 2012 |
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Dive into the research topics of 'Doublon Relaxation in the Bose-Hubbard Model'. Together they form a unique fingerprint.Projects
- 2 Finished
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Field-Theoretical to Complex Networks
Engineering & Physical Science Research Council
1/02/08 → 31/07/11
Project: Research Councils
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Advanced Fellowship - Dr DM Gangardt
Engineering & Physical Science Research Council
1/09/06 → 31/08/11
Project: Research Councils