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Nonmonotonous temperature dependence of the initial decoherence in quantum dots

Title data

Vagov, Alexei ; Axt, Vollrath M. ; Kuhn, Tilmann ; Langbein, W. ; Borri, P. ; Woggon, U.:
Nonmonotonous temperature dependence of the initial decoherence in quantum dots.
In: Physical Review B. Vol. 70 (2004) Issue 20 . - No. 201305(R), 4 Seiten.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.70.201305

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

We have analyzed the initial decoherence of strongly confined semiconductor quantum dots by performing four-wave-mixing experiments and comparing with theory. The measurements are in quantitative agreement with analytical results accounting for the pure dephasing induced by acoustic phonons. The experiments confirm the recent prediction of an unusual nonmonotonous temperature dependence of the initial decoherence time.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: quantum dot; generating functions; non-linear optics; ultrafast dynamics; pure dephasing; phonons; analytical solutions; phonon sidebands; excitons; four-wave mixing; polaron formation; Non-perturbative solution; decoherence
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III
Result of work at the UBT: No
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 23 Oct 2017 10:13
Last Modified: 23 Oct 2017 10:13
URI: https://eref.uni-bayreuth.de/id/eprint/40111