Measure coherent evolution time using spin echo sequence
T2 Echo Time
240.5 ns
Echo Visibility
92.5%
Decay Rate
4.16 kHz
The spin echo sequence (π/2 - π - π/2) refocuses slow frequency fluctuations, giving a longer coherence time than Ramsey. This T2* measurement isolates reversible dephasing from irreversible relaxation, providing insight into noise sources and enabling better error mitigation strategies for quantum gates.