Phys.org July 13, 2018
In their experiments, an international team of researchers (Australia, USA – Purdue University) has confirmed the ability to tune neighbouring qubits into resonance without impacting each other. Creating engineered phosphorus molecules with different separations between the atoms within the molecule allows for families of qubits with different control frequencies. Each molecule can be operated individually by selecting the frequency that controls its electron spin. It creates a built-in address which will provide significant benefits for building a silicon quantum computer. By engineering the atomic placement of the atoms within the qubits in the silicon chip, the molecules can be created with different resonance frequencies. The research is a milestone in creating a quantum computer chip in silicon… read more. Open Access TECHNICAL ARTICLEÂ
The three peaks represent three different configurations of spins within the atomic nuclei, and the distance between the peaks depends on the exact distance between atoms forming the molecule. Credit: Dr. Sam Hile