Two qudits fully entangled

https://phys.org/news/2023-04-qudits-fully-entangled.html

"more efficient, faster and powerful quantum computers... fully entangle 2 qudits, each encoded in up to 5 states of individual calcium ions... Quantum systems have many available states waiting to be used for quantum computing, rather than limiting them to work with qubits. Many of today's most challenging problems, in fields as diverse as chemistry, physics or optimization, can benefit from this more natural language of quantum computing"