Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Anna Grodecka-Grad"'
Autor:
Doris E. Reiter, Anna Grodecka-Grad, Vollrath M. Axt, Martin Glässl, Tilmann Kuhn, Paweł Machnikowski, Krzysztof Gawarecki, Sebastian Lüker
Publikováno v:
physica status solidi c. 10:1210-1213
We study the evolution of a quantum dot controlled by a frequency-swept (chirped), linearly polarized laser pulse in the presence of carrier-phonon coupling. The final occupation of the exciton state is limited both due to phonon-induced transitions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbce11d0d60636898895748c908cca0f
https://doi.org/10.1002/pssc.201200746
https://doi.org/10.1002/pssc.201200746
Autor:
Vollrath M. Axt, Krzysztof Gawarecki, Paweł Machnikowski, Doris E. Reiter, Anna Grodecka–Grad, Martin Glässl, Tilmann Kuhn, Sebastian Lüker
Publikováno v:
Physical Review B. 86
We study the evolution of an exciton confined in a quantum dot adiabatically controlled by a frequency-swept (chirped) laser pulse in the presence of carrier-phonon coupling. We focus on the dynamics induced by a linearly polarized beam and analyze t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::662eb61110218c75c7e807b8a3ff85ff
https://doi.org/10.1103/physrevb.86.235301
https://doi.org/10.1103/physrevb.86.235301
Autor:
Doris E. Reiter, Anna Grodecka-Grad, Tilmann Kuhn, Krzysztof Gawarecki, Sebastian Lüker, Paweł Machnikowski, Vollrath M. Axt
Publikováno v:
Scopus-Elsevier
The effect of acoustic phonons on different light-induced excitations of a semiconductor quantum dot is investigated. Resonant excitation of the quantum dot leads to Rabi oscillations, which are damped due to the phonon interaction. When the excitati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4552589c6dc6e7746e433694fa536db
http://arxiv.org/abs/1207.6660
http://arxiv.org/abs/1207.6660
Autor:
Tilmann Kuhn, Sebastian Lüker, Paweł Machnikowski, Krzysztof Gawarecki, Doris E. Reiter, Anna Grodecka-Grad, Vollrath M. Axt
Publikováno v:
Physical Review B. 85
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::432c62d686416363f81033f04b2a54cb
https://doi.org/10.1103/physrevb.85.121302
https://doi.org/10.1103/physrevb.85.121302
Publikováno v:
Physical Review Letters
We study spatial multimode quantum memories based on light storage in extended ensembles of Lambda-type atoms. We show that such quantum light-matter interfaces allow for highly efficient storage of many spatial modes. In particular, forward operatin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3714a1720a5b79d489c6338da45b976b
http://arxiv.org/abs/1110.6771
http://arxiv.org/abs/1110.6771
Publikováno v:
Physical Review A. 84
We develop a three-dimensional theory for quantum memories based on light storage in ensembles of Lambda-type atoms, where two long-lived atomic ground states are employed. We consider light storage in an ensemble of finite spatial extent and we show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f3f27b919e66a7037de8d88526bccfa
https://doi.org/10.1103/physreva.84.043838
https://doi.org/10.1103/physreva.84.043838
Publikováno v:
Physical Review B. 81
We study theoretically phonon-assisted relaxation processes in a system consisting of one or two electrons confined in two vertically stacked self-assembled quantum dots. The calculation is based on a k.p approximation for single particle wave functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eafbc0bcf33d62e1abe3f81c90140d8a
https://doi.org/10.1103/physrevb.81.245312
https://doi.org/10.1103/physrevb.81.245312
Autor:
Jens Förstner, Anna Grodecka-Grad
We study the influence of the phonon environment on the electron dynamics in a doped quantum dot molecule. A non-perturbative quantum kinetic theory based on correlation expansion is used in order to describe both diagonal and off-diagonal electron-p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2b2f530ebb90b3e4f5f2493e19db737
Autor:
Anna Grodecka-Grad, Jens Förstner
A quantum dot molecule doped with a single electron in the presence of diagonal and off-diagonal carrier-phonon couplings is studied by means of a non-perturbative quantum kinetic theory. The interaction with acoustic phonons by deformation potential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5fd9220e330585d0b1a5054f439c8ac
http://arxiv.org/abs/0912.1181
http://arxiv.org/abs/0912.1181
Autor:
Anna Grodecka-Grad, Jens Förstner
Publikováno v:
Journal of Physics: Conference Series. 245:012035
We study a single quantum dot molecule doped with one electron in the presence of electron-phonon coupling. Both diagonal and off-diagonal interactions representing real and virtual processes with acoustic phonons via deformation potential and piezoe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::733411dd438c1423b34abacbe688b91b
https://doi.org/10.1088/1742-6596/245/1/012035
https://doi.org/10.1088/1742-6596/245/1/012035