Bloch particle in the presence of dc and ac fields: Statistics of the Wigner delay time

Authors
Gluck, M Kolovsky, AR Korsch, HJ
Citation
M. Gluck et al., Bloch particle in the presence of dc and ac fields: Statistics of the Wigner delay time, PHYS REV L, 82(7), 1999, pp. 1534-1537
Citations number
9
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
7
Year of publication
1999
Pages
1534 - 1537
Database
ISI
SICI code
0031-9007(19990215)82:7<1534:BPITPO>2.0.ZU;2-S
Abstract
The paper studies quantum states of a Bloch particle in the presence of ext ernal ac and de fields. Provided the period of the ac field and the Bloch p eriod are commensurate, an effective scattering matrix is introduced, the c omplex poles of which are the system quasienergy spectrum. The statistics o f the resonance width and the Wigner delay time shows a close relation of t he problem to random matrix theory of chaotic scattering.[S0031 -9007(99)08 408-2].