QuEra and AWS announce fault-tolerant quantum computer for 2028

QuEra Computing announced Libra, a fault-tolerant quantum computer planned for 2028, through an expanded partnership with AWS.quera+1
The megaquop-class system targets 256 logical qubits and one error per million operations, aiming to tackle problems beyond classical computing's reach.quantumcomputingreport
No fully fault-tolerant quantum computer exists yet; QuEra competes with IonQ and Rigetti in the race to build one.newscientist+1

QuEra Computing on Monday unveiled Libra, its first fault-tolerant quantum computer, set to arrive on Amazon Amazon.com, Inc. Braket in 2028 as part of an expanded multi-year strategic collaboration with AWS.quera+1

The megaquop-class system is projected to feature over 256 error-corrected logical qubits and a logical error rate of 10⁻⁶ — meaning one error per million operations — enabling researchers to tackle problems in quantum chemistry, high-energy physics, and materials simulation that remain beyond the reach of classical and current noisy intermediate-scale quantum computers.aws.amazon+1

What Libra Promises

The Libra processor will be built from approximately 10,000 to 15,000 physical qubits made of ultra-cold neutral atoms manipulated by lasers, organized into 256 logical qubit clusters. Its "megaquop" designation means the hardware can execute on the order of one million reliable logical quantum operations before errors degrade computational states.newscientist+1

A fully operational fault-tolerant quantum computer does not yet exist, according to New Scientist, making the 2028 target ambitious. QuEra CEO Alex Keesling and researchers at the company believe the system will excel at complex simulations of physical and material systems currently out of reach.newscientist

Deepening the AWS Partnership

The collaboration extends a relationship that began in 2022, when QuEra first brought its neutral-atom technology to Amazon Braket. QuEra's earlier system, Aquila, became available on the platform in late 2025 as the first generally accessible neutral-atom machine.quera+1

Under the expanded agreement, Libra will integrate with AWS's classical high-performance computing and AI/ML resources to support hybrid quantum-classical workflows. AWS described the partnership as bringing "the first fault-tolerant quantum computers capable of tackling scientifically relevant problems" to its cloud customers.aws.amazon

The Competitive Landscape

The announcement arrives as multiple quantum computing firms race toward fault tolerance. The neutral-atom approach championed by QuEra competes with trapped-ion and superconducting qubit architectures pursued by rivals including IonQ and Rigetti, both also available through Amazon Braket. AWS itself maintains an internal quantum hardware research center developing cat qubits.quera+1

Whether useful, error-free quantum computers can arrive within two years remains an open question across the industry.newscientist

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