Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Physical Review B

Influence of acoustic phonons on the optical control of quantum dots driven by adiabatic rapid passage

Sebastian Lüker, Krzysztof Gawarecki, Doris E. Reiter, Anna Grodecka-Grad, V. M. Axt, Paweł Machnikowski, T. Kühn

Published Mar 15, 2012• 65 citations
Publisher

Abstract

The role of phonons for adiabatic rapid passage in semiconductor quantum dots is studied theoretically. While in an ideal system adiabatic rapid passage results in a full inversion of the quantum dot occupation, phonons hamper this behavior drastically. We show that the transitions between the adiabatic states lead to a temperature-dependent decrease of the final exciton occupation. In contrast to the ideal evolution, the phonon-related perturbation induces dependencies on the pulse power and on the sign of the chirp.

DOI
10.1103/physrevb.85.121302

Related papers

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

Reuble Mathew, Eric Dilcher, Angela Gamouras +5 more

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.

Physical Review B•Jul 25, 2014•44 citations

Phonon Effects on Population Inversion in Quantum Dots: Resonant, Detuned and Frequency-Swept Excitations

Doris E. Reiter, Sebastian Lüker, Krzysztof Gawarecki +4 more

The eect of acoustic phonons on dierent light-induced excitations of a semiconductor quantum dot is investigated.Resonant excitation of the quantum dot leads to the Rabi oscillations, which are damped due to the phonon interaction.When the excitation frequency is detuned, an occupation can only occur due to phonon absorption or emission processes.For frequency-swept excitations a population inversion is achieved through adiabatic rapid passage, but the inversion is also damped by phonons.For all three scenarios the inuence of the phonons depends non-monotonically on the pulse area.

arXiv:1207.6660•Acta Physica Polonica A•Dec 1, 2012•29 citations

Adiabatic rapid passage in quantum dots: phonon‐assisted decoherence and biexciton generation

Krzysztof Gawarecki, S. Lüker, Doris E. Reiter +5 more

Abstract 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 between the adiabatic spectral branches and because of phonon‐assisted transitions to the biexcitostate. When the biexciton shift is large enough, the quantum dot can be modeled as a two‐level system, which corresponds to excitation with circularly polarized light. For this case, we compare different methods of simulations: (i) a time convolutionless method, (ii) correlation expansion and (iii) path integrals. We show that results obtained from these methods agree perfectly at temperatur. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

arXiv:1210.6096•Physica status solidi. C, Conferences and critical reviews/Physica status solidi. C, Current topics in solid state physics•May 31, 2013•3 citations

Dephasing in the adiabatic rapid passage in quantum dots: the role of phonon-assisted biexciton generation

Krzysztof Gawarecki, Sebastian Lüker, Doris E. Reiter +5 more

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 the decoherence due to phonon-assisted biexciton generation. We show that if the biexciton state is shifted down by a few meV, as is typically the case, the resulting decoherence is strong even at low temperatures. As a result, efficient state preparation is restricted to a small parameter area corresponding to low temperatures, positive chirps and moderate pulse areas.

arXiv:1209.2675•Sep 12, 2012•0 citations

Dephasing in the adiabatic rapid passage in quantum dots: Role of phonon-assisted biexciton generation

Krzysztof Gawarecki, Sebastian Lüker, Doris E. Reiter +5 more

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 the decoherence due to phonon-assisted biexciton generation. We show that if the biexciton state is shifted down by a few meV, as is typically the case, then the resulting decoherence is strong even at low temperatures. As a result, efficient state preparation is restricted to a small parameter area corresponding to low temperatures, positive chirps, and moderate pulse areas.

Physical Review B•Dec 3, 2012•22 citations

Subpicosecond adiabatic rapid passage in a single InGaAs quantum dot: Role of phonons in dephasing

Reuble Mathew, Eric Dilcher, Angela Gamouras +4 more

Robust excitation of an exciton state via adiabatic rapid passage is demonstrated in a single InGaAs quantum dot using subpicosecond optical pulses. A chirp sign dependence of the transfer efficiency indicates dephasing tied to phonons.

Journal of International Crisis and Risk Communication Research•Jan 1, 2014•0 citations
The role of phonons for adiabatic rapid passage in semiconductor quantum dots is studied theoretically. While in an ideal system adiabatic rapid passage results in a full inversion of the quantum dot occupation, phonons hamper this behavior drastically. We show that the transitions between the adiabatic states lead to a temperature-dependent decrease of the final exciton occupation. In contrast to the ideal evolution, the phonon-related perturbation induces dependencies on the pulse power and on the sign of the chirp.
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.
The eect of acoustic phonons on dierent light-induced excitations of a semiconductor quantum dot is investigated.Resonant excitation of the quantum dot leads to the Rabi oscillations, which are damped due to the phonon interaction.When the excitation frequency is detuned, an occupation can only occur due to phonon absorption or emission processes.For frequency-swept excitations a population inversion is achieved through adiabatic rapid passage, but the inversion is also damped by phonons.For all three scenarios the inuence of the phonons depends non-monotonically on the pulse area.
Abstract 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 between the adiabatic spectral branches and because of phonon‐assisted transitions to the biexcitostate. When the biexciton shift is large enough, the quantum dot can be modeled as a two‐level system, which corresponds to excitation with circularly polarized light. For this case, we compare different methods of simulations: (i) a time convolutionless method, (ii) correlation expansion and (iii) path integrals. We show that results obtained from these methods agree perfectly at temperatur. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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 the decoherence due to phonon-assisted biexciton generation. We show that if the biexciton state is shifted down by a few meV, as is typically the case, the resulting decoherence is strong even at low temperatures. As a result, efficient state preparation is restricted to a small parameter area corresponding to low temperatures, positive chirps and moderate pulse areas.
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 the decoherence due to phonon-assisted biexciton generation. We show that if the biexciton state is shifted down by a few meV, as is typically the case, then the resulting decoherence is strong even at low temperatures. As a result, efficient state preparation is restricted to a small parameter area corresponding to low temperatures, positive chirps, and moderate pulse areas.