Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 63: Poster – Quantum Information (joint session QI/Q)
Q 63.59: Poster
Donnerstag, 13. März 2025, 17:00–19:00, Tent
Quantum systems driven by nonclassical light treated using the hierarchy of pure states — •Vladislav Sukharnikov1, Stasis Chuchurka1, and Frank Schlawin2 — 1Department of Physics, Universität Hamburg, 22761 Hamburg, Germany — 2Max Planck Institute for the Structure and Dynamics of Matter, 22761 Hamburg, Germany
Quantum systems driven by nonclassical light fields have garnered significant attention, particularly in light of recent breakthroughs in high-harmonic generation using nonclassical light sources. Developing a comprehensive theoretical framework for these systems would be highly beneficial. However, the inherent complexity of the problem limits a fully general treatment. In this work, we investigate the interaction between an atomic system and nonclassical light, such as squeezed light, examining the dynamic evolution of both the atomic system and the field. To tackle this challenging problem, we employ a hierarchy of pure states to model the coupling to the field, which is treated as a non-Markovian bath. This method allows for parallelization and effectively treats multimode structure of the field, providing deeper insights into the underlying dynamics and expanding our understanding of these complex systems.
Keywords: Nonclassical light; Non-Markovian decoherence; Open quantum systems