Physicists at Chalmers University of Technology in Sweden have developed a method to perform quantum operations over 1,000 times faster. The technique focuses on bosonic quantum codes, which store information in microwave field states within superconducting circuits rather than individual qubits.
Previously, operations with these states required thousands of cycles, leaving the system vulnerable to errors from electrical noise, cosmic radiation, and overheating. The new approach, led by Lei Du and Tangyou Huang, enables these operations to be executed in a single cycle.
The method utilizes quantum lattice gates combined with Floquet engineering, which involves applying periodic external influence. By reducing the operation time, the researchers aim to minimize the window during which external disturbances can corrupt quantum information.
This development is intended to improve the reliability of quantum computing and represents a step toward fault-tolerant systems. The team is currently discussing experimental verification of the method, which is compatible with existing superconducting quantum computer platforms.
Chalmers University is currently developing a 100-qubit superconducting quantum computer. The researchers state that their new approach can be implemented on such existing hardware architectures without requiring significant structural changes.
