Sentences with phrase «spin coherence times»

Since 2012, when the first qubits that relied on electron spins were reported, the introduction of isotopically purified 28Si has led to significant enhancement of the spin coherence time.

Not exact matches

Using first - principles quantum theory, the JQI team has explored the time evolution of a Ps BEC containing various mixtures of spin - 0 and spin - 1 Ps atoms, and has found that there is a critical density of Ps, above which collision processes quickly destroy the internal coherence of the gas.

Steger et al. (p. 1280) demonstrate that the nuclear spins of 31P impurities in an almost isotopically pure sample of 28Si can have a coherence time of as long as 192 seconds at a temperature of ∼ 1.7 K.

In diamond at room temperature, Maurer et al. (p. 1283) show that a spin - based qubit system comprised of an isotopic impurity (13C) in the vicinity of a color defect (a nitrogen - vacancy center) could be manipulated to have a coherence time exceeding one second.

Electron spins in silicon quantum dots are attractive systems for quantum computing owing to their long coherence times and the promise of rapid scaling of the number of dots in a system using semiconductor fabrication techniques.

The 29Si isotope is present at 4.67 percent in natural silicon and is the only stable isotope of silicon that carries a nuclear spin limiting the qubit coherence time.