Overlap Gap Property, Spin Glasses & Obstructions to local Quantum Algorithms
Speaker: JuspreetTitle: Overlap Gap Property, Spin Glasses & Obstructions to local Quantum Algorithms
Date: 30 Aug 2021 17:30-19:00 EST
Location: SEC Level 3 NW Terrace for dinner and 3.301 for talk
Food: Sichun
Abstract: In a remarkable set of works, started in [GS14] by an observation about the solution geometry of “good” solutions to certain combinatorial problems on random instances known as The Overlap Gap Property, various families of algorithms have been shown to be obstructed on many different problems [GS14], [GJ19], [CGPR19], [CLSS21]. However, while the property has proved to obstruct algorithms, the proofs have been fairly decentralized, coming in (algorithm, problem) pairs and they have almost exclusively been used to obstruct classical algorithms. In [CLSS21], we try to unify the proof obstructions and extend The Overlap Gap Property as an obstruction to all local quantum algorithms on typical instances of sparse random Constraint Satisfaction Problems. The talk requires no quantum or statistical physics knowledge as prerequisite, and will be at a high-level, stating and introducing the important notions and giving a high-level overview of the history of results and ending with some exciting possible open-questions for further inquiry.