IBM says it has succeeded in connecting and cooling two cryogenic modules within a single environment, a milestone that marks an important step in the development of fault-tolerant quantum computing.
The new architecture is designed to scale within the modular, shared and ultracold system needed to connect hundreds of quantum chips to a more powerful quantum computer capable of solving complex problems.
Its deployment is an important step toward the delivery of IBM Quantum Starling in 2029, which is expected to be the world's first fault-tolerant quantum computer and will incorporate advances in error correction, processor design, decoding and systems engineering.
Initial tests showed that the two operational modules can be cooled together to 4 kelvins (the temperature of liquid helium) in less than five days, before soon reaching a final temperature below 15 millikelvins. The vacuum chamber of each module provides up to 12 times more cabling space than IBM's most widely used quantum systems.
IBM's new box-shaped design allows the modules to be connected in a tight row and to use the larger space to directly link quantum processors to the IT services group's "L-coupler" technology.
By 2027, IBM's quantum roadmap calls for using L-couplers to connect multiple processors within a larger quantum computer with at least 1,000 programmable qubits. To that end, IBM will install IBM Quantum Nighthawk processors in the cryogenic modules later this year to expand operational performance testing.
International Business Machines Corporation (IBM) is one of the world's leading computer services companies. Net sales break down by activity as follows:
- cognitive solutions and transaction processing software development (43.2%);
- IT services (33%): consulting (management of logistic chains, financial performance, CRM, human resources, etc.), application management, systems integration, cloud computing, hosting, technical support services, etc.;
- sale of IT infrastructure (22.3%): hybrid IT infrastructure solutions, microcomputers, servers, peripheral devices, networks, data storage equipment, etc.;
- financing of computer equipment (1.1%);
- other (0.4%).
Net sales are distributed geographically as follows: the United States (40.1%), Americas (9.7%), Europe-Middle East-Africa (31%) and Asia-Pacific (19.2%).
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