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(CA) Adaptive directional gradients for parameterised quantum circuits

New quantum gradient method trains circuits orders of magnitude faster

Researchers have developed a new framework for estimating gradients in parameterized quantum circuits (PQCs) that significantly reduces the measurement cost associated with training. This approach, based on the forward mode of automatic differentiation, offers an unbiased gradient estimator by averaging random directional derivatives. The proposed QUIVER optimizer, derived from this framework, demonstrates orders of magnitude greater efficiency in training quantum neural networks compared to the standard parameter-shift rule, outperforming other measurement-frugal optimizers on various quantum algorithms. AI

IMPACT This new gradient estimation technique could accelerate the development and application of quantum machine learning models.

RANK_REASON The cluster contains an academic paper detailing a new method for training quantum circuits.

Read on arXiv cs.LG →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

COVERAGE [2]

  1. arXiv cs.LG TIER_1 (CA) · Brian Coyle, Snehal Raj, Virag Umathe, El Amine Cherrat, Elham Kashefi ·

    Adaptive directional gradients for parameterized quantum circuits

    arXiv:2606.09734v1 Announce Type: cross Abstract: Training parameterised quantum circuits (PQCs) on quantum hardware is bottlenecked by the measurement cost of gradient estimation, which under the parameter-shift rule scales linearly in the number of trainable parameters and domi…

  2. arXiv cs.LG TIER_1 (CA) · Elham Kashefi ·

    Adaptive directional gradients for parameterized quantum circuits

    Training parameterised quantum circuits (PQCs) on quantum hardware is bottlenecked by the measurement cost of gradient estimation, which under the parameter-shift rule scales linearly in the number of trainable parameters and dominates the total shot budget of training at scale. …