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QI: Fachverband Quanteninformation

QI 36: Poster – Quantum Information (joint session QI/Q)

QI 36.68: Poster

Donnerstag, 13. März 2025, 17:00–19:00, Tent

Phase Space Dynamics of Continuous-Variable, Open Bosonic Systems with Generative Neural Quantum States — •Ege Görgün — Institut für Festkörpertheorie und Optik, Jena, Deutschland

Simulating the dynamics of interacting many-body quantum systems poses a significant challenge due to the exponential complexity scaling with system size. In this work, we derive the quantum master equation for phase space quasi-probability distributions across a diverse set of open bosonic systems, providing an analytical foundation for tracking their dynamics. We then present a neural quantum state (NQS) ansatz based on an invertible neural network (INN) trained within a time-dependent variational principle (TDVP) framework, offering a versatile approach for modelling the phase space dynamics of a broad class of continuous-variable systems. Leveraging the inherent invertibility of INNs, our model provides a robust architecture that can serve not only as a Monte Carlo sampler but also enable direct access to probability distributions over time through latent space dynamics.

Keywords: Quasi-Probability Distributions; Generative Neural Quantum States; Open Quantum Systems; Projected Time Dependent Variational Monte Carlo; Quantum Simulations