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Generating sequences of phonon wave packets by optical excitation of a quantum dot

Title data

Reiter, Doris ; Wigger, Daniel ; Lüker, Sebastian ; Axt, Vollrath M. ; Machnikowski, Paweł ; Kuhn, Tilmann:
Generating sequences of phonon wave packets by optical excitation of a quantum dot.
In: Journal of Physics: Conference Series. Vol. 647 (2015) Issue 1 . - Art.Nr. 012025, 4 S..
ISSN 1742-6596
DOI: https://doi.org/10.1088/1742-6596/647/1/012025

Project information

Project financing: Deutscher Akademischer Austauschdienst

Abstract in another language

Phonons can play an active role in controlling solid state systems or in the transport of energy and information. Thus, it is vital to understand generation processes and properties of phonons. By optical excitation of a semiconductor quantum dot, a sequence of phonon wave packets can be created. In this paper we focus on the fluctuation properties of lattice displacement and momentum of these phonon wave packets. For detuned excitation the fluctuations may fall below their respective vacuum values and squeezing occurs.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: phonon wave packets; phonon dynamics; coherent phonons; incoherent phonons; energy transport; ultrafast dynamics; quantum dot; lattice fluctuations; phonon squeezing
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: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 03 Nov 2017 09:15
Last Modified: 03 Nov 2017 09:15
URI: https://eref.uni-bayreuth.de/id/eprint/40267