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Bootstrapping Matrix Quantum Mechanics

Xizhi Han, Sean A. Hartnoll, Jorrit Kruthoff

2020Physical Review Letters90 citationsDOIOpen Access PDF

Abstract

Large N matrix quantum mechanics is central to holographic duality but not solvable in the most interesting cases. We show that the spectrum and simple expectation values in these theories can be obtained numerically via a "bootstrap" methodology. In this approach, operator expectation values are related by symmetries-such as time translation and SU(N) gauge invariance-and then bounded with certain positivity constraints. We first demonstrate how this method efficiently solves the conventional quantum anharmonic oscillator. We then reproduce the known solution of large N single matrix quantum mechanics. Finally, we present new results on the ground state of large N two matrix quantum mechanics.

Topics & Concepts

PhysicsQuantum mechanicsQuantum statistical mechanicsMatrix (chemical analysis)Quantum processQuantum dynamicsQuantumComposite materialMaterials scienceBlack Holes and Theoretical PhysicsQuantum Electrodynamics and Casimir EffectNoncommutative and Quantum Gravity Theories