The quantum approximate optimization algorithm at high depth for maxcut on large-girth regular graphs and the sherrington-kirkpatrick model

J Basso, E Farhi, K Marwaha, B Villalonga… - arXiv preprint arXiv …, 2021 - arxiv.org
The Quantum Approximate Optimization Algorithm (QAOA) finds approximate solutions to
combinatorial optimization problems. Its performance monotonically improves with its depth …

Optimization of the Sherrington--Kirkpatrick Hamiltonian

A Montanari - SIAM Journal on Computing, 2021 - SIAM
Let A∈\mathbbR^n*n be a symmetric random matrix with independent and identically
distributed (iid) Gaussian entries above the diagonal. We consider the problem of …

Proof of the satisfiability conjecture for large k

J Ding, A Sly, N Sun - Proceedings of the forty-seventh annual ACM …, 2015 - dl.acm.org
We establish the satisfiability threshold for random k-SAT for all k≥ k0. That is, there exists a
limiting density αs (k) such that a random k-SAT formula of clause density α is with high …

The overlap gap property and approximate message passing algorithms for -spin models

D Gamarnik, A Jagannath - 2021 - projecteuclid.org
We consider the algorithmic problem of finding a near ground state (near optimal solution) of
a p-spin model. We show that for a class of algorithms broadly defined as Approximate …

Limitations of local quantum algorithms on random max-k-xor and beyond

CN Chou, PJ Love, JS Sandhu, J Shi - arXiv preprint arXiv:2108.06049, 2021 - arxiv.org
We introduce a notion of\emph {generic local algorithm} which strictly generalizes existing
frameworks of local algorithms such as\emph {factors of iid} by capturing local\emph …

Suboptimality of local algorithms for a class of max-cut problems

WK Chen, D Gamarnik, D Panchenko, M Rahman - 2019 - projecteuclid.org
We show that in random K-uniform hypergraphs of constant average degree, for even K≧4,
local algorithms defined as factors of iid can not find nearly maximal cuts, when the average …

Potential Hessian Ascent: The Sherrington-Kirkpatrick Model

D Jekel, JS Sandhu, J Shi - Proceedings of the 2025 Annual ACM-SIAM …, 2025 - SIAM
We present the first iterative spectral algorithm to find near-optimal solutions for a random
quadratic objective over the discrete hypercube, resolving a conjecture of Subag [Sub21] …

Free energy in multi-species mixed p-spin spherical models

E Bates, Y Sohn - Electronic Journal of Probability, 2022 - projecteuclid.org
We prove a Parisi formula for the limiting free energy of multi-species spherical spin glasses
with mixed p-spin interactions. The upper bound involves a Guerra-style interpolation and …

Classical algorithms and quantum limitations for maximum cut on high-girth graphs

B Barak, K Marwaha - arXiv preprint arXiv:2106.05900, 2021 - arxiv.org
We study the performance of local quantum algorithms such as the Quantum Approximate
Optimization Algorithm (QAOA) for the maximum cut problem, and their relationship to that of …

Algorithmic thresholds in mean field spin glasses

AE Alaoui, A Montanari - arXiv preprint arXiv:2009.11481, 2020 - arxiv.org
Optimizing a high-dimensional non-convex function is, in general, computationally hard and
many problems of this type are hard to solve even approximately. Complexity theory …