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(Sub)Exponential Quantum Speedup for Optimization

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arxiv 2504.14841 v1 pith:ZBZOHVDB submitted 2025-04-21 quant-ph cs.CCmath.OC

classification quant-phcs.CCmath.OC
keywords optimizationquantumadiabaticcontinuousdiscreteexponentialevolutionachieved
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We demonstrate provable (sub)exponential quantum speedups in both discrete and continuous optimization, achieved through simple and natural quantum optimization algorithms, namely the quantum adiabatic algorithm for discrete optimization and quantum Hamiltonian descent for continuous optimization. Our result builds on the Gily\'en--Hastings--Vazirani (sub)exponential oracle separation for adiabatic quantum computing. With a sequence of perturbative reductions, we compile their construction into two standalone objective functions, whose oracles can be directly leveraged by the plain adiabatic evolution and Schr\"odinger operator evolution for discrete and continuous optimization, respectively.

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Cited by 2 Pith papers

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

  1. Stochastic Quantum Hamiltonian Descent

    quant-ph 2025-07 conditional novelty 6.0 of 10

    SQHD is a gate-based quantum algorithm that approximates a Lindblad dynamics blending Hamiltonian descent with stochastic component noise, giving an order-2 weak approximation and an O(1/t + eta sigma*) convergence bo...

  2. Quantum Algorithms for Bandits with Knapsacks with Improved Regret and Time Complexities

    quant-ph 2025-07 conditional novelty 6.0 of 10

    Quantum algorithms for bandits with knapsacks achieve improved regret and time complexity by replacing classical sampling with quantum Monte Carlo and approximate quantum LP solving.

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