A glimpse into the Ultrametric spectrum

TL;DR

This paper investigates deformed string spectra inspired by p-adic string theory, revealing a spectrum with exponential energy growth and log-periodic fluctuations that preserve Hardy-Ramanujan scaling.

Contribution

It introduces a novel spectral analysis of p-adic string models, demonstrating how Hardy-Ramanujan scaling can be maintained with modulated fluctuations.

Findings

Exponential growth of energies with balanced degeneracies

Hardy-Ramanujan scaling is realized with log-periodic modulations

Spectrum derived from eigenvalues of p-adic operators

Abstract

The non-relativistic string spectrum is built from integer-spaced energy quanta in such a way that the high-temperature asymptotics, via the Hardy-Ramanujan formula for integer partitions, reduces to standard two-dimensional thermodynamics. Here we explore deformed realizations of this behavior motivated by $p$-adic string theory and Lorentzian versions thereof with a non-trivial spectrum. We study the microstate scaling that results on associating quantum harmonic oscillators to the normal modes of tree-graphs rather than string graphs and observe that Hardy-Ramanujan scaling is not realized. But by computing the eigenvalues of the derivative operator on the $p$-adic circle and by determining the eigenspectrum of the Neumann-to-Dirichlet operator, we uncover a spectrum of exponentially growing energies but with exponentially growing degeneracies balanced in such a way that Hardy-Ramanujan scaling is realized, but modulated with log-periodic fluctuations.