Extended Data Fig. 4: Calculated qubit coherence.
From: Multi-qubit entanglement and algorithms on a neutral-atom quantum computer
Calculated \({T}_{2}^{\ast }\) as a function of atom temperature and magnetic field noise for 825-nm trap light and a bias magnetic field of 1.6 mT. The contours are labelled with the value of \({T}_{2}^{\ast }\) in ms. The estimated magnetic noise on the basis of magnetometer measurements is σ < 20 mG and the average measured coherence time is \(\langle {T}_{2}^{\ast }\rangle =3.5{\rm{ms}},\) which indicates an atomic temperature near 5 μK.
