The world's first fault-tolerant quantum computer: release date and new features
QuEra has successfully reduced the qubit error rate and will launch its first commercially available computer this year.
Quantum computers with error correction
Reducing errors using logical qubits
Quantum entanglement-connected qubits significantly reduce errors in quantum computers. Using logical qubits, data is stored in different places, which expands computing capabilities.
Launch of the new QuEra machine
At the end of 2024, the new QuEra machine will be launched with 256 physical and 10 logical qubits. This was announced following the publication of a paper in the journal Nature in which researchers from Harvard, QuEra and other institutions demonstrated a working quantum computer with 48 logical qubits.
Error Correction in Quantum Computers
QuEra introduces the first quantum error correction machine. While the computer itself is not powerful enough, it provides a platform for testing code for future quantum computers.
Conventional computers store information in bits with values of 0 or 1, while quantum computers use qubits, which can be a superposition 0 and 1. Qubits can be entangled and exist in multiple states at the same time, allowing them to perform calculations faster than classical computers. However, qubits are error-prone, and correcting them becomes necessary to combat high failure rates.
Quantum Noise Reduction
QuEra's new error correction system is based on data redundancy, where the same piece of data is stored in multiple places. Logical qubits perform the same calculations on multiple physical qubits, significantly reducing error rates.
To create a logic qubit, researchers apply error-correcting computer code to regular qubits. The qubits are then coupled using quantum gates and “syndromes” are calculated to detect errors and correct them.
- QuEra is a quantum computer company.
- Nature is a journal that publishes an article by researchers from Harvard, QuEra and other institutions.