Triply-heavy/strange baryons with Cornell potential on a quantum computer

TL;DR

This paper demonstrates the computation of triply-heavy baryons using a quantum computer with the Cornell potential, providing spectrum predictions aligned with previous models and highlighting the negligible quantum statistical error.

Contribution

It introduces a quantum computing approach to calculate triply-heavy baryon spectra using the Cornell potential, extending previous quarkonium methods to more complex particles.

Findings

Spectrum compatible with earlier predictions

Quantum statistical error negligible compared to traditional uncertainties

Substitution of heavy quarks with strange quarks explored

Abstract

We present a computation of triply-heavy baryons on a quantum computer, employing the Cornell quark model in line with the earlier quarkonium work of Gallimore and Liao. These baryons are some of the most interesting Standard Model particles which have not yet been detected, as they bear on the short range (colour) behaviour of the nuclear force. The spectrum here obtained is compatible with predictions from earlier works, with our uncertainty dominated by traditional few-body approximations (size of the variational basis, center of mass recoil, parameter estimation...) and not by the statistical error from the quantum computer (deployed here as a small diagonalizer), which turns out to be negligible respect to the other sources of uncertainty, at least in the present unsophisticated few-body approximation. We have also substituted one or more heavy quarks for strange quarks.