Qudit Computers Go Beyond Ones and Zeroes

Recommendable! Could this be a breakthrough?

From the abstract:

"Most quantum computers use binary encoding to store information in qubits—the quantum analogue of classical bits. Yet, the underlying physical hardware consists of information carriers that are not necessarily binary, but typically exhibit a rich multilevel structure. Operating them as qubits artificially restricts their degrees of freedom to two energy levels. ... Here we demonstrate a universal quantum processor using trapped ions that act as qudits with a local Hilbert-space dimension of up to seven. With a performance similar to qubit quantum processors, this approach enables the native simulation of high-dimensional quantum systems, as well as more efficient implementation of qubit-based algorithms."

“Qudit” Computers Go Beyond Ones and Zeroes - IEEE Spectrum New machine works with eight qudits, each capable of encoding seven states at once

A universal qudit quantum processor with trapped ions (no public access, but article above contains link to PDF)