Dynamically Dressed States of a Quantum Four-Level System
arXiv:2506.14643 · doi:10.1103/yqjn-w5m8
Abstract
In this work, we experimentally and theoretically study the dressed-state emission of the biexciton-exciton cascade in a semiconductor quantum dot under pulsed, resonant, two-photon excitation. Building on the well-characterized steady-state dressed emission of the four-level system, we examine its dynamic counterpart under pulsed, resonant excitation, addressing both experimental observations and theoretical modeling. Here we report several sidebands emerging from the biexciton-to-exciton transition, whose number and spectral width depend on the excitation pulse duration and the effective pulse area, while no sidebands emerge from the exciton-to-ground-state transition. Since the biexciton state population follows a nonlinear pulse area function, sidebands with a small spectral nonlinearity result. Detuning- and time-dependent measurements provide deeper insight into the emission properties of the dressed states. They show that side peak emission only occurs in the presence of the excitation pulse. Moreover, when the system is excited by a Gaussian-shaped laser pulse, side peak emission takes place sequentially.
17 pages, 10 figures
References in corpus (24)
- Photonic quantum technologies
- Transform-limited single photons from a single quantum dot
- Quantum dots for photonic quantum information technology
- Theory of frequency-filtered and time-resolved N-photon correlations
- A dark-field microscope for background-free detection of resonance fluorescence from single semiconductor quantum dots operating in a set-and-forget mode
- Numerically exact open quantum systems simulations for arbitrary environments using automated compression of environments
- Dissipative preparation of the exciton and biexciton in a self-assembled quantum dot on picosecond timescales
- Two-photon spectra of quantum emitters
- Phonon-assisted robust and deterministic two-photon biexciton preparation in a quantum dot
- Probing electron-phonon interaction through two-photon interference in resonantly driven semiconductor quantum dots
- Cavity-enhanced simultaneous dressing of quantum dot exciton and biexciton states
- The role of phonons for exciton and biexciton generation in an optically driven quantum dot
- Quantum theory of light emission from quantum dots coupled to structured photonic reservoirs and acoustic phonons
- Distilling one, two and entangled pairs of photons from a quantum dot with cavity QED effects and spectral filtering
- A source of entangled photons based on a cavity-enhanced and strain-tuned GaAs quantum dot
- Narrow optical linewidths and spin pumping on charge-tunable, close-to-surface self-assembled quantum dots in an ultra-thin diode
- Accuracy of the quantum regression theorem for photon emission from a quantum dot
- Sublinear scaling in non-Markovian open quantum systems simulations
- Two-Photon Excitation Sets Limit to Entangled Photon Pair Generation from Quantum Emitters
- Non-linear two-photon resonance fluorescence on a single artificial atom
- ACE: A general-purpose non-Markovian open quantum systems simulation toolkit based on process tensors
- Spectral asymmetries in the resonance fluorescence of two-level systems under pulsed excitation
- Two photons everywhere
- Spectral correlations of dynamical Resonance Fluorescence