Search results for: Alice & Bob

Alice & Bob has introduced "Elevator Codes," a quantum error correction (QEC) architecture designed to minimize the physical hardware required for fault-tolerant computing. Detailed in a technical study authored by Diego Ruiz and Peter Shanahan, the architecture utilizes the inherent noise bias of cat qubits to address bit-flip and phase-flip errors at different layers. By concatenating classical repetition codes with high-rate outer codes, the design achieves a 10,000x reduction in logical error rates while requiring only 3x more physical qubits than the company’s current baseline repetition code. Standard fault-tolerant approaches often rely on 2D surface codes to correct both bit-flips and [...]

Alice & Bob, a quantum computing company, has announced a plan to hire 100 new employees by mid-2026. This workforce expansion is intended to support technology development and business expansion, and will nearly double the company's current headcount. The hiring plan targets 90 technical roles, including scientists, engineers, and technicians in physics, quantum error correction, firmware and software development, machine learning, and quantum hardware infrastructure. The remaining 10 hires will be for business and management roles. The workforce expansion follows the company’s €100 million ($118M) Series B funding round and the launch of a quantum laboratory in Paris with a nanofabrication [...]

Scientists from Alice & Bob, a quantum computing company, and Inria, France’s national institute for research in digital science and technology, have submitted a new study for peer review. The study details a new quantum error correction scheme, dubbed the “unfolded code,” which presents a method for producing magic states on superconducting quantum computers. This research addresses the challenge of magic state preparation, a resource-intensive aspect of quantum computing necessary for achieving a universal fault-tolerant gate set. Their new approach, outlined in the paper “Unfolded distillation: very low-cost magic state preparation for biased-noise qubits,” leverages the noise bias of cat qubits, [...]

Alice & Bob has announced the construction of a €50 million quantum hardware facility in Paris, featuring a 4,000 m² chip development lab with a nanofabrication cleanroom and infrastructure to support its next-generation QPU lines: Lithium, Beryllium, and Graphene. The facility will include a cryostat farm housing 20 dilution refrigerators to enable parallel experimentation and development, with a dedicated section for testing Graphene, a 100-logical-qubit machine scheduled for 2030. The lab is funded by the company’s recent €100 million ($103 million USD) Series B. The site will integrate systems from Quantum Machines and Bluefors, who will provide quantum control electronics and [...]

Alice & Bob, a company developing fault-tolerant quantum computers, announced the closure of a €100 million ($104.9 million USD) Series B funding round, led by Future French Champions (FFC), AVP, and Bpifrance. The funding aims to advance Alice & Bob’s mission of building the world’s first useful quantum computer by 2030. Alice & Bob’s proprietary “cat qubit” technology suppresses bit-flip errors, enabling scalable quantum computing with significantly reduced hardware requirements. This innovation allows the company to achieve fault tolerance with only thousands of qubits instead of the millions needed by other approaches. Funds will support the development of the first error-corrected [...]