Polarization dependence of phonon influences in exciton-biexciton quantum dot systems

Abstract

We report on a strong dependence of the phonon-induced damping of Rabi dynamics in an optically driven exciton-biexciton quantum dot system on the polarization of the exciting pulse. While for a fixed pulse intensity the damping is maximal for linearly polarized excitation, it decreases with increasing ellipticity of the polarization. This finding is most remarkable considering that the carrier-phonon coupling is spin-independent. In addition to simulations based on a numerically exact real-time path integral approach, we present an analysis within a weak coupling theory that allows for analytical expressions for the pertinent damping rates. We demonstrate that an efficient coupling to the biexciton state is of central importance for the reported polarization dependencies. Further, we discuss influences of various system parameters and show that for finite biexciton binding energies Rabi scenarios differ qualitatively from the widely studied two-level dynamics.

References in corpus (20)

• Quantum-Information Processing with Semiconductor Macroatoms
• Damping of Exciton Rabi Rotations by Acoustic Phonons in Optically Excited InGaAs/GaAs Quantum Dots
• Phonon induced Rabi frequency renormalization of optically driven single InGaAs/GaAs quantum dots
• Control of Spin Dynamics of Excitons in Nanodots for Quantum Operations
• Heralded Single-Photon Emission from the Mollow Triplet Sidebands of a Quantum Dot
• Exploiting exciton-exciton interactions in semiconductor quantum dots for quantum-information processing
• Phonon-dressed Mollow triplet in the regime of cavity-QED
• Dephasing of Mollow Triplet Sideband Emission of a Resonantly Driven Quantum Dot in a Microcavity
• A general approach to quantum dynamics using a variational master equation: Application to phonon-damped Rabi rotations in quantum dots
• Robust quantum dot state preparation via adiabatic passage with frequency-swept optical pulses
• Non-Markovian model of photon-assisted dephasing by electron-phonon interactions in a coupled quantum-dot-cavity system
• Quantum state preparation in semiconductor dots by adiabatic rapid passage
• Resonant nature of phonon-induced damping of Rabi oscillations in quantum dots
• Biexcitons in Coupled Quantum Dots as a Source of Entangled Photons
• Iterative algorithm versus analytic solutions of the parametrically driven dissipative quantum harmonic oscillator
• Ultraslow quantum dynamics in a sub-Ohmic heat bath
• Two qubit conditional quantum logic operation in a single self-assembled quantum dot
• Reducing decoherence of the confined exciton state in a quantum dot by pulse-sequence control
• Theory of two-photon processes in quantum dots: coherent evolution and phonon-induced dephasing
• Massive creation of entangled exciton states in semiconductor quantum dots

Cited by in corpus (5)

• The role of phonons for exciton and biexciton generation in an optically driven quantum dot
• Phonon-mediated population inversion in a semiconductor quantum-dot cavity system
• Biexciton state preparation in a quantum dot via adiabatic rapid passage: comparison between two control protocols and impact of phonon-induced dephasing
• Nonlinear cavity feeding and unconventional photon statistics in solid-state cavity QED revealed by many-level real-time path-integral calculations
• Path-integral approach for nonequilibrium multi-time correlation functions of open quantum systems coupled to Markovian and non-Markovian environments