Title

Subpicosecond adiabatic rapid passage on a single semiconductor quantum dot: Phonon-mediated dephasing in the strong-driving regime

Authors

Authors

R. Mathew; E. Dilcher; A. Gamouras; A. Ramachandran; H. Y. S. Yang; S. Freisem; D. Deppe;K. C. Hall

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Phys. Rev. B

Keywords

POPULATION TRANSFER; ENTANGLEMENT; Physics, Condensed Matter

Abstract

We demonstrate adiabatic rapid passage on a subpicosecond time scale in a single semiconductor quantum dot, enabling the exploration of a regime of strong (and rapidly varying) Rabi energies for optical control of excitons. An observed dependence of the exciton inversion efficiency on the sign of the pulse chirp demonstrates the dominance of phonon-mediated dephasing, which is suppressed for positive chirp at low temperature. Our findings will support the realization of dynamical decoupling strategies and suggest that multiphonon emission and/or non-Markovian effects should be taken into account.

Journal Title

Physical Review B

Volume

90

Issue/Number

3

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

6

WOS Identifier

WOS:000339445800005

ISSN

1098-0121

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