TAP approach for multi-species spherical spin glasses II: the free energy of the pure models

TL;DR

This paper applies the generalized TAP approach to compute the free energy limits of pure multi-species spherical p-spin models at any temperature, addressing models lacking convexity assumptions.

Contribution

It extends the TAP method to pure multi-species models without convexity, providing explicit free energy calculations at all temperatures.

Findings

Computed free energy limits for pure multi-species spherical p-spin models.

Demonstrated the applicability of the generalized TAP approach beyond convex models.

Addressed models where previous methods relying on convexity do not apply.

Abstract

In a companion paper we developed the generalized TAP approach for general multi-species spherical mixed $p$-spin models. In this paper, we use it to compute the limit of the free energy at any temperature for all pure multi-species spherical $p$-spin models, assuming that certain free energies converge. Importantly, the pure multi-species models do not satisfy the convexity assumption on the mixture which was crucial in the recent proofs of the Parisi formula for the multi-species Sherrington-Kirkpatrick model by Barra et al. (2015) and Panchenko (2015) and for the multi-species spherical mixed p-spin models by Bates and Sohn (2021).