Today #quantum arXiv selection: Hamiltonian simulation, barren plateau , non-unitary VQE, simulating noisy quantum circuits, quantum compilation, and improved QAOA. More details and links below: - ThreadSky

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schrodcatpost.bsky.social • 35 days ago

Today #quantum arXiv selection: Hamiltonian simulation, barren plateau , non-unitary VQE, simulating noisy quantum circuits, quantum compilation, and improved QAOA.
More details and links below:

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schrodcatpost.bsky.social•35 days ago

Stochastic Zassenhaus expansions (SZEs) are ancilla-free quantum algorithms for Hamiltonian simulation that use randomized sampling to reduce circuit depths, achieving significant improvements compared to traditional methods like Suzuki-Trotter formulas.
https://arxiv.org/abs/2501.13922

schrodcatpost.bsky.social•35 days ago

A new paper introduces AntiBP, a framework for co-designing parameters and architectures of variational quantum circuits (VQCs) to mitigate barren plateaus.
https://arxiv.org/abs/2501.13275

schrodcatpost.bsky.social•35 days ago

The LAS-nuVQE method combines localized active space self-consistent field with non-unitary VQE to efficiently recover interfragment correlations, achieving chemical accuracy with shallow circuits and offering a more cost-effective alternative to standard VQE.
https://arxiv.org/abs/2501.13371

schrodcatpost.bsky.social•35 days ago

This work introduces non-zero noise extrapolation, a method that enhances the accuracy of tensor network simulations for noisy quantum circuits in the low-noise regime.
https://arxiv.org/abs/2501.13237

schrodcatpost.bsky.social•35 days ago

A new work proposes a machine-learning-based figure of merit for quantum compilation predicts execution quality more accurately.
https://arxiv.org/abs/2501.13155

schrodcatpost.bsky.social•35 days ago

A new study introduces Penta-O, a level-wise parameter-setting strategy for QAOA that eliminates the classical outer loop, reduces complexity to O(p^2), minimizes sampling overhead, and achieves near-optimal performance and circuit depth efficiency.
https://arxiv.org/abs/2501.13469

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