US firm hits 30 entangled logical qubits on quantum computer with error-corrected architecture

A Colorado-based company has announced a major milestone in quantum computing. Infleqtion’s Sqale quantum computer has demonstrated 30 entangled logical qubits using just 80 physical qubits.

The 30-logical-qubit demonstration represents an important data point in the industry’s effort to move from isolated quantum experiments toward machines capable of executing increasingly long and reliable computations.

Infleqtion becomes first neutral-atom quantum computing company to reach 30 logical qubits

This achievement makes Infleqtion the first neutral-atom quantum computing company to reach 30 logical qubits on a commercial system.

Infleqtion revealed that the breakthrough combines hardware and software co-design with an AI-assisted discovery that halves the physical gates needed for a key logical operation. By entangling 30 logical qubits in a single, coherent quantum state, Infleqtion has validated the core architecture of its Sqale hardware and Superstaq software, on its roadmap to deliver 100 logical qubits by 2028.

“Getting 30 logical qubits to work together is hard, and our team has done it,” said Matt Kinsella, CEO of Infleqtion. “Co-design between our hardware and software enabled this demonstration with just 80 physical qubits. We’re moving quickly toward our target of 100 logical qubits in 2028, and we’re already developing applications with customers. The goal is to give them a quantum computer that can take on problems they can’t solve today.”

Unlike fragile physical qubits, which suffer rapid calculation decay from environmental noise, logical qubits group multiple physical qubits together using software protocols to ensure computational stability and accuracy. Infleqtion’s achievement of 30 logical qubits was experimentally confirmed by a signal that is approximately 1000x stronger than underlying noise, according to a press release.

Infleqtion has three customers for logical qubit circuits on the Sqale platform. Among them is the Wellcome Leap Quantum for Bio (Q4Bio) program, where Infleqtion pioneered and demonstrated on hardware a quantum neural network approach with training on GPU and inference on QPU for biomarker discovery. That work, first demonstrated at 12 logical qubits, extends directly into today’s result, as per the release.

“Getting 30 logical qubits to work together is hard, and our team has done it,” said Matt Kinsella, CEO of Infleqtion.

“Co-design between our hardware and software enabled this demonstration with just 80 physical qubits. We’re moving quickly toward our target of 100 logical qubits in 2028, and we’re already developing applications with customers. The goal is to give them a quantum computer that can take on problems they can’t solve today.”

Breakthrough is powered by Infleqtion’s Superstaq quantum software

The company also revealed that the breakthrough is powered by Infleqtion’s Sqale QPU hardware and Superstaq quantum software platform, which unite individual qubit-addressing capabilities with dynamically reconfigurable atom arrays. This unique combination maintains all-to-all connectivity while minimizing the typical pitfalls of atom movement, including error accumulation, atom loss, and runtime delays.