Condensed Matter Theory

Christoph Weiss: Coherent control of population transfer between communicating defects

Author(s): Christoph Weiss

Title:
Coherent control of population transfer between communicating defects

Date of Upload:
2006-01-03

Article: Phys. Rev. B 73, 054301 (2006)

Keywords: communicating defects, tunneling control

PACS: 73.43.Jn, 71.23.An, 72.10.Fk

Abstract:
Population transfer between two identical, communicating defects in a one-dimensional tight-binding lattice can be systematically controlled by external time-periodic forcing. Employing a force with slowly changing amplitude, the time it takes to transfer a particle from one defect to the other can be altered over several orders of magnitude. An analytical expression is derived which shows how the forcing effectively changes the energy splitting between the defect states, and numerical model calculations illustrate the possibility of coherent control of the transfer.

Copyright: APS

URL: http://de.arxiv.org/abs/cond-mat/0601044 (other)


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