Achieving practical fault-tolerant quantum computing has been limited by inflexible architectures for managing qubits on constrained chips. Technical University of Munich researchers have developed RushHour, a dynamically reconfigurable lattice surgery system which allows algorithms to run efficiently on smaller hardware. This approach enabled 86% of benchmarks to execute successfully where previous methods required sharply larger processors. RushHour is a new system improving how quantum computers manage their resources during calculations. The team’s approach allows complex algorithms to run on smaller computer chips; this represents progress towards building practical quantum systems capable of tolerating errors. In tests against existing methods, the new system successfully completed computations where others failed entirely, demonstrating its potential for advancing the field. Technical University of Munich researchers unveiled RushHour, a system designed to improve resource management in quantum computers and bring practical fault-tolerant computing closer to reality. Current methods for managing qubits are often inflexible, requiring pre-allocation of resources which limits performance on smaller chips. The team’s approach dynamically rearranges these resources, akin to rearranging tiles in a mosaic to correct errors and complete the picture, allowing algorithms to run more efficiently. This dynamic reconfiguration also includes an ‘ancilla space’, best understood as extra workspace around a puzzle being assembled, providing temporary auxiliary qubits without impacting core data storage. In tests, 86% of benchmarks ran successfully using RushHour where existing systems failed. Dynamic lattice surgery enables substantial gains in qubit utilisation and computational speed Technical University of Munich scientists have successfully demonstrated their new ‘RushHour’ system runs 86% of quantum computing benchmarks where established methods fail completely. Previously, computations demanded chips 1.2 to 3.5 times larger than those now required. This breakthrough originates from dynamic lattice surgery, a technique manipulating qubits by rearranging them during calculations, achieved through a co-design between hardware and compiler software. Close