Extended Data Table 1 Error budget for entanglement generation and measurement

From: Parallelized telecom quantum networking with an ytterbium-171 atom array

 

Fidelity

Source of error (see Methods)

Error

SNSPD dark counts (Section "Estimation of photon collection rate and signal-to-noise ratio")

0.021(5)

Interferometer visibility (Section "TDI")

0.016(1)

Atom motion between time bins (Section "Effects from atom motion between time bins")

0.009

Spin-flip during Raman (Section "Timing and hardware: attempt loop")

0.0035

REG double-excitation (Section "Spontaneous emission and off-resonant telecom excitation")

0.003

TOTAL

0.053(5)