Quantum Jamming: Critical Properties of a Quantum Mechanical Perceptron

Abstract

In this Letter, we analyze the quantum dynamics of the perceptron model: a particle is constrained on a $N$-dimensional sphere, with $N\to \infty$, and subjected to a set of randomly placed hard-wall potentials. This model has several applications, ranging from learning protocols to the effective description of the dynamics of an ensemble of infinite-dimensional hard spheres in Euclidean space. We find that the jamming transition with quantum dynamics shows critical exponents different from the classical case. We also find that the quantum jamming transition, unlike the typical quantum critical points, is not confined to the zero-temperature axis, and the classical results are recovered only at $T=\infty$. Our findings have implications for the theory of glasses at ultra-low temperatures and for the study of quantum machine-learning algorithms.

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Cited by in corpus (6)

• Spatio-temporal heterogeneity of entanglement in many-body localized systems
• Hard-Sphere Jamming through the Lens of Linear Optimization
• Pattern capacity of a single quantum perceptron
• Quantum jamming brings quantum mechanics to macroscopic scales
• Two-level systems and harmonic excitations in a mean-field anharmonic quantum glass
• On the capacity of a quantum perceptron for storing biased patterns