A Sydney-based start-up, Q-CTRL, has released the results of its algorithmic benchmarking experiments, which demonstrate massively improved performance of quantum computers when an error suppression technique is applied. The technique achieved an improvement of over 2,500 per cent.
Research teams at Yokohoma University have moved quantum computing efforts closer to realizing controllable quantum systems. Microwaves have been known to cause interference in quantum gates under certain conditions, creating difficulty in quantum gate manipulation. By eliminating the microwave-induced interference, the group was able to improve control of the quantum gate in diamonds at room temperature without a magnetic field. This step is an enabler of sustained quantum memory which lends to quantum repeaters. A needed piece of hardware to developing a quantum network.
Australia, in collaboration with U.S.A.’s Purdue University, surged forward with controlling qubits individually on silicon chips. The ability to control qubits singly is seen paramount to moving ahead in making quantum computing a reality. Additional positive findings were error-reductions in the system due to the ability to control qubits individually when in proximity to each other. This brings quantum computing one step closer to complex computations involving entangled states.
