LPQCs are shown to universally approximate distributions over quantum density operators in 1-Wasserstein distance via a hybrid classical-quantum construction, with added multimodal priors and mixture-of-experts architecture that empirically reduces barren plateaus.
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Latent-Conditioned Parameterized Quantum Circuits as Universal Approximators for Distributions over Quantum States
LPQCs are shown to universally approximate distributions over quantum density operators in 1-Wasserstein distance via a hybrid classical-quantum construction, with added multimodal priors and mixture-of-experts architecture that empirically reduces barren plateaus.