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Beyond qubits: Meet the qutrit (and ququart)

1 westurner 2 5/15/2025, 2:46:02 AM arstechnica.com ↗

Comments (2)

westurner · 13h ago
ScholarlyArticle: "Quantum error correction of qudits beyond break-even" (2025) https://www.nature.com/articles/s41586-025-08899-y
westurner · 12h ago
"Logical states for fault-tolerant quantum computation with propagating light" (2024) https://www.science.org/doi/10.1126/science.adk7560 .. "A physical qubit with built-in error correction" https://news.ycombinator.com/item?id=39243929

"Layer codes" (2024) https://www.nature.com/articles/s41467-024-53881-3 .. https://news.ycombinator.com/item?id=42264340 ; 3D layer codes now instead of 2D surface codes

From https://news.ycombinator.com/item?id=42723063 :

> /? How can fractional quantum hall effect be used for quantum computing https://www.google.com/search?q=How+can+a+fractional+quantum...

>> Non-Abelian Anyons, Majorana Fermions are their own anti particles, Topologically protected entanglement [has lower or no error and thus less need for QEC quantum error correction]