Chinese team designs 62-qubit quantum processor with world’s largest number of superconducting qubits

Chinese team designs 62 qubit quantum processor with worlds largest number
Photo: WeiboA Chinese research team has successfully designed a 62-qubit programmable superconducting quantum processor, naming it Zu Chongzhi after the noted 5th century Chinese mathematician and astronomer. The computer contains the largest number of superconducting qubits so far in the world, and achieved two-dimensional programmable quantum walks on the system, a major milestone in the field. Experts said the study pushes the possibility of universal quantum computing through a two-dimensional quantum walk a big step forward.  The study was conducted by a research team from the University of Science and Technology of China (USTC), and was published Friday in Science magazine, one of the top academic journals in the world.The team designed and produced an 8x8 two-dimensional square superconducting qubit array composed of 62 functional qubits...

Optical Fiber Brings Universal Quantum Computing Closer | Research & Technology | Mar 2021

thumbnail 66836
GAITHERSBURG, Md., March 25, 2021 — Physicists at the National Institute of Standards and Technology (NIST) measured and controlled a superconducting qubit using optical fiber rather than metal electrical wires. The work paves the way to being able to pack a million qubits into a quantum computer rather than just a few thousand and introduces the possibility of a universal quantum computer capable of solving the most difficult equations. Superconducting circuits are a leading technology for making quantum computers because they are reliable and easily mass produced. But these circuits must operate at cryogenic temperatures, and schemes for wiring them to room-temperature electronics are complex and prone to overheating the qubits. Conventional cryostats — supercold dilution refrigerators — with metal wiring can support only thousands of...