Logical qubits — physical quantum bits, or qubits, connected through quantum entanglement — reduce errors in quantum computers by storing the same data in different places. This diversifies the points of failure when running calculations.
The new machine, which has 256 physical and 10 logical qubits, will launch in late 2024, representatives from QuEra, the startup that is building it, said in a statement.
The announcement follows a new study, published Dec. 6, 2023, in the journal Nature, in which researchers from Harvard, QuEra, and several other institutions demonstrated a functioning quantum computer that contained 48 logical qubits — the largest number of logical qubits tested to date.
“It is the first machine with quantum error correction,” study co-author Harry Zhou, a physicist at QuEra and Harvard University, told Live Science in an email.
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