Classical and quantum radiation of perturbed discrete breathers

Details Classical and quantum radiation of perturbed discrete breathers Classical and quantum radiation of perturbed discrete breathers

2004-10-19

arxiv.org/abs/cond-mat/0410465v1

Physical Review B 71, 064302 (2005)

Physics

Condensed Matter

Other Condensed Matter

8 pages, 3 figures

Scientific paper

10.1103/PhysRevB.71.064302

We show that the linearized phase space flow around a discrete breather solution is not capable of generating persistent energy flow away from the breather even in the case of instabilities of extended states. This holds both for the classical and quantized description of the flow. The main reason for that is the parametric driving the breather provides to the flow. Corresponding scaling arguments are derived for both classical and quantum cases. Numerical simulations of the classical flow support our findings.

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