Using logical qubits to make a quantum computer that can correct its errors

https://phys.org/news/2023-12-logical-qubits-quantum-errors.html

"logical qubits rely on built-in redundancy of entanglement for error correction, rather than on redundant copies of information relied on by hardware-based qubits... quantum computer with 48 logical qubits, the most yet, built by separating thousands of rubidium atoms in vacuum chamber near absolute 0, and used lasers to entangle atoms creating 48 qubits which were made to interact using optical tweezers avoiding need for wires... quantum computer with fewer errors"

Related:

A physical qubit with built-in error correction
https://phys.org/news/2024-02-physical-qubit-built-error.html

New system boosts efficiency of quantum error correction
https://phys.org/news/2024-04-boosts-efficiency-quantum-error.html

Quantum computing breakthrough could happen with just hundreds, not millions, of qubits using new error-correction system
https://www.livescience.com/technology/computing/major-quantum-computing-milestone-could-be-hit-with-just-hundreds-not-millions-of-qubits-thanks-to-new-error-correction-system