Two Different Quantum Dot Qubits Combined to Overcome Limitations | NextBigFuture.com

RIKEN Center for Emergent Matter Science has constructed a hybrid quantum device made from two different types of qubits. They have created a device that can be quickly initialized and read out, and that simultaneously maintains high control fidelity. They combined single-spin qubit called a Loss-DiVincenzo qubit and a singlet-triplet qubit. The Loss-DiVincenzo qubit has very high control fidelity—meaning that it is in a clear state, making it ideal for calculations, and has a long decoherence time. It will stay in a given state for a relatively long time before losing its signal to the environment. Unfortunately, the downside to