Phys.org  June 3, 2021 An international team of researchers (Austria, Italy, Germany, Spain) has created a new candidate system for reliable qubits using the spin of holes which carry the quantum-mechanical property of spin and interact if they come close to each other. The hole can move around in the solid when a neighboring electron fills the hole. They confined the holes to the germanium-rich layer in the middle of layered silicon and germanium adding gates to control the movement of holes. They could move holes and alter their properties. By engineering different hole properties, they created the qubit out […]