Nature publishes Chinese scientists’ breakthrough in quantum computing

A screenshot of the article on the webpage of the academic journal Nature. /CGTN

A screenshot of the article on the webpage of the academic journal Nature. /CGTN

Chinese scientists have found a way to train an ordered and tunable majorana-zero-mode (MZM) network, an important step to dramatically improve quantum computing performance.

The research results were published in the academic journal Nature on June 8, led by scientists from the Institute of Physics of the Chinese Academy of Sciences and Boston College.

MZMs are considered building blocks for constructing topological qubits. A qubit is a quantum bit, the basic unit of information in a quantum computer.

“Four MZMs can be woven into a topological qubit, which is considered an important way to realize fault-tolerant topological quantum computing,” said Gao Hongjun, one of the paper’s corresponding authors, according to Wenhui Daily. .

Isolated MZMs are found in topological vortex cores in superconductors with topological band structures. Using an external magnetic field, the researchers detect that more than 90% of the vortices are topological and have the characteristics of isolated MZMs at the center of the vortex in stoichiometric iron-based superconducting LiFeAs, forming an ordered and tunable MZM lattice.

Corresponding author Gao Hongjun presents the research results at a press conference, June 6, 2022. /CFP

Corresponding author Gao Hongjun presents the research results at a press conference, June 6, 2022. /CFP

The ordered and tunable MZM network can help overcome environmental interference—a long-standing obstacle in quantum computing—providing more reliable and efficient quantum computing capability.

“Our findings pave the way towards tunable and ordered MZM networks as a platform for future topological quantum computing,” the paper says.

Read more: Discover China’s deep dive into quantum technology

Sherry J. Basler