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Competition between pure dephasing and photon losses in the dynamics of a dot-cavity system

Title data

Vagov, Alexei ; Glässl, Martin ; Croitoru, Mikhail D. ; Axt, Vollrath M. ; Kuhn, Tilmann:
Competition between pure dephasing and photon losses in the dynamics of a dot-cavity system.
In: Physical Review B. Vol. 90 (2014) Issue 7 . - Art.Nr. 075309, 8 S..
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.90.075309

Project information

Project financing: Alexander von Humboldt-Stiftung
Deutsche Forschungsgemeinschaft
BELSPO grant

Abstract in another language

We demonstrate that in quantum-dot cavity systems, the interplay between acoustic phonons and photon losses introduces novel features and characteristic dependencies in the system dynamics. In particular, the combined action of both dephasing mechanisms strongly affects the transition from the weak- to the strong-coupling regime as well as the shape of the spectral triplet that represents the quantum-dot occupation in Fourier space. The width of the central peak in the triplet is expected to decrease with rising temperature, while the widths and heights of the side peaks depend nonmonotonically on the dot-cavity coupling.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: cavity, strong light-matter coupling; Jaynes-Cummings model; quantum dot; path-integrals; nonlinear optics; ultrafast dynamics; pure dephasing; phonons; decoherence; excitons; non-Markovian dynamics; memory effects; phonon-induced memory; multi-phonon processes; numerically complete real-time path integrals; quantum dissipative dynamics; phonon induced relaxation; photon losses; cavity QED
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 07:55
Last Modified: 03 Nov 2017 07:55
URI: https://eref.uni-bayreuth.de/id/eprint/40261