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Latent Style-based Quantum GAN for high-quality Image Generation

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arxiv 2406.02668 v1 pith:AAPEGUID submitted 2024-06-04 quant-ph

classification quant-ph
keywords latentquantumclassicaldatagenerationgenerativeimagelast-qgan
verification ladder T0 review T1 audit T2 compute T3 formal
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Quantum generative modeling is among the promising candidates for achieving a practical advantage in data analysis. Nevertheless, one key challenge is to generate large-size images comparable to those generated by their classical counterparts. In this work, we take an initial step in this direction and introduce the Latent Style-based Quantum GAN (LaSt-QGAN), which employs a hybrid classical-quantum approach in training Generative Adversarial Networks (GANs) for arbitrary complex data generation. This novel approach relies on powerful classical auto-encoders to map a high-dimensional original image dataset into a latent representation. The hybrid classical-quantum GAN operates in this latent space to generate an arbitrary number of fake features, which are then passed back to the auto-encoder to reconstruct the original data. Our LaSt-QGAN can be successfully trained on realistic computer vision datasets beyond the standard MNIST, namely Fashion MNIST (fashion products) and SAT4 (Earth Observation images) with 10 qubits, resulting in a comparable performance (and even better in some metrics) with the classical GANs. Moreover, we analyze the barren plateau phenomena within this context of the continuous quantum generative model using a polynomial depth circuit and propose a method to mitigate the detrimental effect during the training of deep-depth networks. Through empirical experiments and theoretical analysis, we demonstrate the potential of LaSt-QGAN for the practical usage in the context of image generation and open the possibility of applying it to a larger dataset in the future.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Scaling Quantum Machine Learning without Tricks: Full-Resolution and Diverse Image Generation

    quant-ph 2026-02 conditional novelty 6.0 of 10

    A single end-to-end quantum generator using an image-tailored circuit and learnable multimodal noise achieves state-of-the-art simulated FID scores on full MNIST and Fashion-MNIST without tricks.

  2. Pitfalls when tackling the exponential concentration of parameterized quantum models

    quant-ph 2025-07 conditional novelty 6.0 of 10

    Exponentially concentrated measurement outcomes are statistically indistinguishable from fixed noise after polynomial shots, so classical post-processing cannot fix them, and common proposed remedies do not escape this.

  3. Improving GANs by leveraging the quantum noise from real hardware

    quant-ph 2025-07 conditional novelty 6.0 of 10

    Using bitstrings from a 16-qubit entangling circuit as a Gaussian latent prior lowers FID in WGAN, SNGAN, and BigGAN on CIFAR-10 versus a standard Gaussian.

  4. Inverse Design using Physics-Informed Quantum GANs for Tailored Absorption in Dielectric Metasurfaces

    physics.optics 2025-07 reject novelty 5.0 of 10

    A hybrid quantum GAN with a Fano-based physics loss is proposed for inverse design of narrow-band absorbing metasurfaces, claiming data-efficient generation of high-Q designs.

  5. Hybrid Quantum-Classical Inverse Design of Metasurfaces for Tailored Narrow Band Absorption

    physics.optics 2025-07 reject novelty 5.0 of 10

    A hybrid quantum-classical GAN (LaSt-QGAN) is applied to metasurface inverse design, claiming 10x faster training, 40x less data, and generation of Q-factors up to 10^4 from a training set with Q-factors up to 10^3.

  6. Hybrid Quantum Generative Adversarial Networks To Inverse Design Metasurfaces For Incident Angle-Independent Unidirectional Transmission

    physics.optics 2025-07 reject novelty 5.0 of 10

    A hybrid quantum GAN with a variational autoencoder is applied to inverse-design dielectric metasurfaces for directional far-field patterns and then to boost simulated perovskite solar-cell efficiency.

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