Bidirectional Autoregressive Latent Diffusion for Forward and Inverse Magnetohydrodynamics

• URL: http://arxiv.org/abs/2606.29620v1
• Date: Sun, 28 Jun 2026 21:57:22 GMT
• Title: Bidirectional Autoregressive Latent Diffusion for Forward and Inverse Magnetohydrodynamics
• Abstract summary: We show that this bidirectional flow can be used as a self-supervised consistency metric for uncertainty and error estimation.<n>We also demonstrate this methods's potential to serve as a non-invasive plasma diagnostic, and show how adaptive feedback can be used to make the model more robust.
• Score: 51.56484100374058
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This work presents a new bidirectional autoregressive latent diffusion approach for predicting the evolution of multiple fields (mass density, pressure, velocity, and magnetic field components) for magnetohydrodynamics. We show that this bidirectional flow can be used as a self-supervised consistency metric for uncertainty and error estimation, which enables the model to estimate test-time uncertainty and error without access to ground truth, by comparing how closely flowing forwards and backwards in time returns to the same predicted fields. We also demonstrate this methods's potential to serve as a non-invasive plasma diagnostic, and show how adaptive feedback can be used to make the model more robust based on sparse diagnostics or limited views/measurements.

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